Samsung Glyde SCH-U940 – How to replace the keypad

Samsung Glyde SCH-U940

Using your thumb, press down and slide the back cover away from the camera.

Remove the battery from the phone.

Use a Phillips #00 screwdriver to remove the six 4mm screws.

Find a gap on any side of the phone and pry the case off with the plastic opening tool.

Use moderate pressure to slowly maneuver the plastic opening tool around until the case is removed.
Take the case off with your fingers.

The green film is located above the camera. It is the camera connector to the motherboard.

Disconnect the camera connector with the plastic opening tool.

Take a close up of the picture for this step for a better view.

Use a plastic opening tool to disconnect the keyboard connector.

The motherboard is held in place by the circular connector.
Using a plastic opening tool, disconnect the circular connector.

A LCD connector is located underneath the motherboard.

Lift the far edge of the motherboard gently upwards toward the center.
Using a plastic opening tool, disconnect the LCD connector.

Lift the motherboard up with your fingers.

Place the motherboard in a secure area.

The antenna is the last part that needs to be removed. It is located at the bottom end of the device.

Prop the antenna out with the plastic opening tool. Slip the tip of the tool in the edges of the antenna. Pry the antenna out with moderate pressure.
Using a plastic opening tool, disconnect the connector leading from the phone to the antenna.

The keyboard chip is located on top of the device. Pry the keyboard off of the case with the plastic opening tool.

To remove the keypad, slide out the display, and poke the keypad out.

Apple MacBook Pro 15 Retina Display – How to replace the cooling fan

Apple MacBook Pro 15 Retina - COOLING FAN REPLACEMENT PROCEDURE 
Remove the following pentalobe screws securing the lower case to the MacBook Pro:
Eight 3.0 mm
Two 2.3 mm
Lifting from the edge nearest the clutch cover, lift the lower case off the MacBook Pro.
Set the lower case aside.
Battery Connector
Peel back the warning label covering the battery connector.
 Using the flat end of a spudger, gently pry the battery connector straight up out of its socket on the logic board.
Bend the battery cables back and out of the way, ensuring that the battery connector doesn't accidentally make contact with the logic board.
Use the tip of a spudger to pry the three AirPort antenna cables straight up off of their sockets on the AirPort board.
Use the tip of a spudger to push the camera cable connector out of its socket on the logic board.
Be sure to push parallel to the board, pushing first on one side, then the other to "walk" the connector out of its socket.
Insert the flat end of a spudger underneath the rubber heat sink cover on the right fan.
Slide the spudger underneath the length of the cover, releasing the adhesive.
Lift the cover and flip it back so that you can access the cables underneath.
Use your fingers to pull the AirPort/Camera cables up off the fan.
The cables are adhered to the fan, so peel them up carefully to avoid damaging them.
Carefully de-route the cables from the plastic cable guide.
Using the flat end of a spudger, pry the I/O Board connector straight up out of its socket on the logic board. On reassembly, connect this end first as it does not flex.
In a similar fashion, remove the I/O Board connector from its socket on the I/O Board.
Remove the I/O Board cable from the MacBook Pro.
Remove the single 2.9 mm T5 Torx screw securing the AirPort card to the logic board.
Grasp the thin sides of the AirPort card and pull parallel to the logic board, removing the AirPort card from the MacBook Pro.
Use the tip of a spudger to flip up the retaining flap on the right fan ribbon cable ZIF socket.
Be sure you are prying up on the hinged retaining flap, not the socket itself.
Starting at the top of the cable, slide a plastic opening tool under the right fan cable to free it from the logic board.
Use caution when freeing the cable, as it is strongly adhered to the logic board.
Remove the following three screws securing the right fan to the logic board:
One 4.4 mm T5 Torx screw
One 3.9 mm T5 Wide Head Torx screwOne 5.0 mm T5 Torx screw with 2 mm collar
Lift and remove the right fan out from the MacBook Pro.

Motorola Atrix 4G – How to replace the Speaker

Motorola Atrix 4G
Pry the rear cover from the back of the phone.
Insert a spudger or plastic opening tool into the small notch at the base of the battery.
Lift the battery out of the phone.
Remove the four 5.0 mm T5 Torx screws from the corners of the phone.
Remove three 5.5 mm T5 Torx screws from the back of the phone.
Lift up the black rubber flap near the SD card slot.
Remove the single 5.5 mm T5 Torx screw beneath the flap.
Do not attempt to loosen the screws with too much force. These screws are small, and easily stripped.
Remove the back case of the phone by gently lifting the tabs located on top of the phone near the lock button.
Use the case opener or spudger in these small areas because the plastic tabs can be easily broken.
Lift the tabs located on the bottom of the phone to continue removing the back cover.
Slide an opening tool between the gap from the back of the case to the front.
After separating the sides, make sure there is a noticeable gap between the back case and the rest of the phone.
After detaching the tabs and sliding down the sides, there should be a noticeable gap between the front and back cases.
Carefully separate the back case from the rest of the phone by lifting it away from the phone.
Do not completely remove the case from the rest of the phone. The antenna is connected to both cases.
Disconnect the antenna from its housing on the motherboard by gently lifting beneath it.
Ease the antenna from out of its guide along the side of the phone
Once the antenna is detached, remove the back case and the antenna from the phone
The antenna is soldered to the back case. Do not pull with too much force.
To remove the motherboard, first dislodge the right side of the motherboard, where the external connections are located, from the rest of the phone.
This can be done by placing a spudger in between the two ports on the phone, between the black plastic and motherboard, and prying out.
The motherboard should be able to be easily lifted upwards after dislodging it.
If the white rubber piece moves, replace it where it came from upon reassembly.
First, several connections must be disconnected to completely separate the motherboard from the rest of the phone.
The connection highlighted with a red box must be pulled down instead of out.
Using the spudger tool, separate the two connections on the motherboard highlighted with orange circles by pulling them out.
The black switch on top of this connection acts as a lock. Push it forwards to unlock the connection.
After disconnecting the motherboard, there should be five distinct and separate parts of the phone: back cover, back case, front case, battery, and motherboard.
In order to get to the top speaker, first remove the rubber cover located directly over the speaker.
The orange adhesive strip needs to be peeled off in order to remove the top speaker. This can be done using fingernails or the spudger tool.
Using the spudger, lift up from under the top speaker and it should slide easily out of place.
Be careful when removing top speaker out of its housing because it is still connected to the phone. You must undo the connection indicated with the orange circle before complete removal.
To undo the connector lift the black flap up - edge closest to the speaker - then the cable slides out

HP Stream 7 Tablet – Disassembling procedure – How to remove the back cover – How to remove the battery – How to remove the middle frame

HP Stream 7 - DISASSEMBLING PROCURE 

Back cover

Before disassembling the tablet, follow these steps:
1. Turn off the tablet. If you are unsure whether the tablet is off or in Hibernation, turn the tablet on, and then shut it down through the operating system.
2. Disconnect the power from the tablet by unplugging the power adapter cord from the tablet.
3. Disconnect all external devices from the tablet.
Remove the back cover:

1. Place the tablet on a flat surface, display panel side down, with the SD card slot and volume control buttons toward you.
2. Use the finger notch (1) to release the bottom edge of the back cover (2) from the display panel assembly.

3. Remove the back cover (3).

Mid-frame cover

1. Turn off the tablet. If you are unsure whether the tablet is off or in Hibernation, turn the tablet on, and then shut it down through the operating system.
2. Disconnect the power from the tablet by unplugging the power adapter cord from the tablet.
3. Disconnect all external devices from the tablet.
4. Remove the back cover
Remove the mid-frame cover:
1. Remove the 6 PH0 screws (1) from the mid-frame cover.

2. Lift the mid-frame cover (2) from the battery area

Battery

Before removing the battery, follow these steps:
1. Turn off the tablet. If you are unsure whether the tablet is off or in Hibernation, turn the tablet on, and then shut it down through the operating system.
2. Disconnect the power from the tablet by unplugging the power adapter cord from the tablet.
3. Disconnect all external devices from the tablet.
4. Remove the back cover

1. Disconnect the battery cable (1) from the system board.
2. Release the battery tabs and tape (2) holding the battery.
NOTE: Be careful not to bend the battery as you lift it.
3. Lift up the battery (3) to release it.
4. Remove the battery (4).

Rear-facing webcamera

Before removing the rear-facing webcamera, follow these steps:
1. Turn off the tablet. If you are unsure whether the tablet is off or in Hibernation, turn the tablet on, and then shut it down through the operating system.
2. Disconnect the power from the tablet by unplugging the power adapter cord from the tablet.
3. Disconnect all external devices from the tablet.
4. Remove the back cover

5. Remove the mid-frame cover
6. Disconnect the battery
Remove the rear-facing webcamera:
1. Disconnect the rear-facing webcamera cable (1) from the system board.
2. Remove the rear-facing webcamera (2) from the display panel assembly

Front-facing webcamera

Before removing the front-facing webcamera, follow these steps:
1. Turn off the tablet. If you are unsure whether the tablet is off or in Hibernation, turn the tablet on, and then shut it down through the operating system.
2. Disconnect the power from the tablet by unplugging the power adapter cord from the tablet.
3. Disconnect all external devices from the tablet.
4. Remove the back cover

5. Remove the mid-frame cover
6. Disconnect the battery
Remove the front-facing webcamera:
1. Release the ZIF connector (1) to which the front-facing webcamera cable is attached.
2. Remove the front-facing webcamera (2) from the display panel assembly.

Nokia Lumia 720 – Disassembling procedure – How to replace the Display

Nokia Lumia 720

DISASSEMBLING PROCEDURE 

Remove the SIM card tray and the memory card try.
Use a screwdriver Torx T2 and remove the screw under the SIM card tray.
Use plastic tools and start the separating the back cover from the top side.

BATTERY COVER

Be careful with the volume buttons.

Remove the 3x Torx T4 screws.

Buzzer / Loudspeacker

Disconnect the battery flex cable.

Unstick the metal foil from the logic board.
Use a plastic tool with a thin tip and unstuck the battery from the middle frame.
Battery - BP-4GWA, 2000mAh, 3.7V, 7.4Vh

Disconnect the Antenna cable from the Logic board and from the Charging Dock board and remove it.

Disconnect the Volume, Power and camera buttons flex cable.

Remove the 4x Torx T4 screws.
Slightly lift the board
Slowly and gently unstuck the light sensor from the middle frame.

Disconnect the Display Assembly flex cable.

Disconnect the Charging Dock Board flex cable.
Remove the Main board.

Use a hair dryer and warm the flex cable.

Careful unstuck the flex cable from the middle frame.
Micro USB connector
Microphone

Use a tool with a sharp point and carefully unstuck the earpiece.

When you start with the removing the ribbon cable be careful with the buttons and with the mall black cups on it.

Warm the flex cable and detach it.

Now you can start with the reassembling, but before you place the back cover, test the new display assembly.

When you put the lid be careful with the volume buttons.

TCON board troubleshooting - AUO TCON board- T260XW01- T296XW01-007 – T296XW01-011- How to repair TCON board - LED LCD television

AUO TCON board- T260XW01- T296XW01-007 – T296XW01-011
A)T-con Board part number : T260XW01
LCD Panel Model: 26 inches
Note: Vcc input= 5V
Problems and Solutions
1) U402= AN1702 IC.
If this IC is faulty , it will cause the TV No Display.
2) U202= MAX1889E
Power management IC (DC-DC circuit IC).
If this IC is faulty, it will cause the TV No Display.
3) U301= FPD87352AU.
If this IC is faulty, it will cause the TV No Display or Display Distortion problem.
4) U302 SDRAM memory IC.
If this IC is faulty, it will cause the TV No Display or Display Distortion problem.

B) T-con Board part number: T296XW01-007
LCD Panel Model: 30 inches
Note: Vcc input= 12V
Problems and Solutions
1) U402= AN1702 IC.
If this IC is faulty, it will cause the TV No Display.
2) U303 EEPROM IC.
If this IC is faulty, it will cause the TV No Display or White Screen problem.
3) U301= FPD87352B.
If this IC is faulty, it will cause the TV No Display or Full Screen of Vertical Lines/Bars.
4) U302 SDRAM memory IC.
If this IC is faulty, it will cause the TV No Display, White Screen or Display Distortion problem.
5) U901 & U911
Power management IC.
If this IC is faulty, it will cause the TV No Display

C) T-con Board part number: T296XW01-011
LCD Panel Model: 30 inches Panel
Note: Vcc input= 12V
1) U301= FPD87352B IC.
If this IC is faulty, it will cause the TV No Display.
2) U302= W986432EH SDRAM.
If this IC is faulty, it will cause the TV No Display.
3) U901 & U911= 9743A
Power management IC (DC-DC circuit IC). If this IC failure, it will cause the TV No Display.
4) U501= EL5420.
If this IC is faulty, it will cause the TV No Display.
5) J501= FPC cable connector.
If this connector contact is abnormal, it will cause the TV No Display, Flickering or sometime No Display problem.

BlackBerry Curve 8900 – Disassembling procedure – How to Remove the case

BlackBerry Curve 8900
MOTHER BOARD REPLACEMENT PROCEDURE
Remove battery cover and battery on the back of the device.
Using a small plastic opening tool, remove the lower rear cover.
Remove six screws from the midframe of the device.
Remove the midframe from the phone.
Gently pry the back the plastic tabs that secure the motherboard to the case.
Slowly work your way around the case until the tabs until the motherboard comes free.
Remove the motherboard.
The keypad and navigation ball may become loose and fall away from the motherboard.
Carefully detach the antenna from the two clips on the side of the motherboard.
Carefully disconnect the antenna from the motherboard.
Carefully disconnect the ribbon cable on the bottom right of the motherboard.
Remove the screen so that it does not get damaged.
Lift the up motherboard from the bottom edge to reveal to ribbon cables.
Carefully disconnect the two ribbon cables connecting the motherboard and display.
Remove the motherboard.

Sharp TCON board – Troubleshooting - CPWBX3255TPZ - CPWBX3749TP - X3219TPZ - X3562TP ZE – LED LCD television

Sharp CPWBX3255TPZ - CPWBX3749TP - X3219TPZ - X3562TP ZE

A) T-con Board: CPWBX3255TPZ
LCD Panel Model: 32 Inches
Note: Vcc input= 5V

1) IC201= THV1031

Power management IC (DC-DC circuit IC). If this IC failed, it will cause the TV No Display.
2) IC1= T3Z16AGF.

If this IC failed, it will cause the TV No Display or Full Screen of Colorful Vertical Lines/Bars.
3) IC501= ADD8707

Gamma IC. If this IC failed, it will cause the TV No Display.
4) IC600= LZ9FB27.

If this IC failed, it will cause the TV No Display.

B) T-con Board: CPWBX3749TP

LCD Panel Model: 52 inches

1) IC7= THV3051

Power management IC. If this IC failed, it will cause the TV No Display.
2) IC1 & IC2= T3Z18AFG IC.

If this IC failed, it will cause the TV No Display.
3) IC28= BD8133FV

Gamma IC. If this IC failed, it will cause the TV No Display or Full Screen of Vertical Lines/Bars.
4) IC30= TB730A5 IC.

If this IC failed, it will cause the TV No Display.

C) T-con Board: X3219TPZ

LCD Panel Model: 37 inches 

1) IC200= 1H04627

Power management IC. If this IC failed, it will cause the TV No Display.
2) MOSFET.

If this components failed, it will cause the TV No Display.
3) IC1= KZ4E167212.

If this IC failed, it will cause the TV No Display.
4) IC2 & IC3

SDRAM memory IC. If this IC failed, it will cause the TV No Display or Display Distortion problem.

D) T-con Board: X3562TP ZE

Note: Vcc input= 5V

1) FET4= A2706.

If this component failed, it will cause the TV No Display.
2) IC6= THV3051

Power management IC (DC-DC circuit IC). If this IC failed, it will cause the TV No Display.
3) IC4= EEPROM memory IC.

If this IC failed, it will cause the TV No Display or White Screen.
4) IC1= T3Z18AGF.

If this IC failed, it will cause the TV No Display or Full Screen of Vertical Lines/Bars.
5) BD8139EFV Gamma IC.

If this IC failed, it will cause the TV No Display

Samsung Galaxy Note – Disassembling procedure – How to replace the middle frame

Samsung Galaxy Note

MIDDLE FRAME REPLACEMENT PROCEDURE 

Pry with a plastic opening tool, or your fingernail, in the divot to the right of the rear-facing camera, near the volume rocker.

Lift and remove the rear case from the phone.

Insert your finger in the notch of the battery compartment.
Press the battery toward the rear facing camera while pulling outward.

Use the flat end of a spudger, or your fingernail, to press the microSD card slightly deeper into its slot until you hear a click.

After the click, release the card and it will pop out of its slot.
For reassembly, push the microSD card into the slot until it clicks in place.

Remove the microSD card from its slot in the midframe.

Use a plastic opening tool, or your fingernail, to push the SIM card out of its compartment.

Slide the SIM card out the rest of the way with your thumb and remove it from the device.

Remove the nine 3.4 mm Phillips #00 screws securing the midframe to the display assembly.

Insert your plastic opening tool to the left of the power button between the midframe and the front panel assembly and pry.

Slide the plastic opening tool down the seam.

Insert your plastic opening tool to the left of the headphone jack between the midframe and the display assembly.

Slide the opening tool along the top edge of the phone.
Continue to run the plastic opening tool around the perimeter of the phone until the midframe is separated.

Remove the midframe from the display assembly.

Motorola Atrix 4G – Disassembling procedure – How to replace the mother board – How to reset Motorola Atrix 4G

Motorola Atrix 4G

Motorola ATRIX 4G hard reset

To perform an External Manual Reset of your handset to restore to factory settings, follow the step:
1. Power off the phone, press and hold volume down button, press power button.
2. Screen will come up with "Fastboot", press Vol down key to cycle through choices until you get "Android Recovery", then press POWER key to select
3. Wait for the "triangle ! / Android" screen then go on to step 4
4. Press both Volume + and -. Tap on bottom right corner of the screen (may take a few times). a menu will come up.
5. Tap on "wipe data/factory reset", and tap OK. Another Confirmation screen will come. Tap Yes and OK
6. After userdata is cleared, the "reboot system now" option will be highlighted by Default. Tap OK.
7. Phone will reboot to initial setup MOTOBLUR screen.

Please note: If Factory menu does not appear press the volume-button to access the menu.
Navigation in menu by volume up/down, confirm with power button.

Factory Data Reset through settings menu

1.Open the Applications Tray. (arrow pointing up located in the middle at the bottom of the display screen)
2.Touch Settings
3.Touch Privacy
4.Touch Factory data reset
5.Touch Reset Phone
6.Touch Erase Everything

MOTHER BOARD REPLACEMENT PROCEDURE 

Pry the rear cover from the back of the phone.

Insert a spudger or plastic opening tool into the small notch at the base of the battery.

Lift the battery out of the phone.

Remove the four 5.0 mm T5 Torx screws from the corners of the phone.

Remove three 5.5 mm T5 Torx screws from the back of the phone.
Lift up the black rubber flap near the SD card slot.
Remove the single 5.5 mm T5 Torx screw beneath the flap.
Do not attempt to loosen the screws with too much force. These screws are small, and easily stripped.

Remove the back case of the phone by gently lifting the tabs located on top of the phone near the lock button.

Use the case opener or spudger in these small areas because the plastic tabs can be easily broken.
Lift the tabs located on the bottom of the phone to continue removing the back cover.

Slide an opening tool between the gap from the back of the case to the front.

After separating the sides, make sure there is a noticeable gap between the back case and the rest of the phone.
After detaching the tabs and sliding down the sides, there should be a noticeable gap between the front and back cases.

Carefully separate the back case from the rest of the phone by lifting it away from the phone.

Do not completely remove the case from the rest of the phone. The antenna is connected to both cases.

Disconnect the antenna from its housing on the motherboard by gently lifting beneath it.

Ease the antenna from out of its guide along the side of the phone

Once the antenna is detached, remove the back case and the antenna from the phone
The antenna is soldered to the back case. Do not pull with too much force.

To remove the motherboard, first dislodge the right side of the motherboard, where the external connections are located, from the rest of the phone.

This can be done by placing a spudger in between the two ports on the phone, between the black plastic and motherboard, and prying out.
The motherboard should be able to be easily lifted upwards after dislodging it.
If the white rubber piece moves, replace it where it came from upon reassembly.

First, several connections must be disconnected to completely separate the motherboard from the rest of the phone.

The connection highlighted with a red box must be pulled down instead of out.
Using the spudger tool, separate the two connections on the motherboard highlighted with orange circles by pulling them out.
The black switch on top of this connection acts as a lock. Push it forwards to unlock the connection.

After disconnecting the motherboard, there should be five distinct and separate parts of the phone: back cover, back case, front case, battery, and motherboard.

LG TCON board – Troubleshooting - LC260W01-A5 (6870C-0011D) - LC260WX2 (6870C-0036D) - LC260WX2-SLB3 (6870C-0079C) - LC300W01-A3 (6870C-0002C

LG - LC260W01-A5 (6870C-0011D) - LC260WX2 (6870C-0036D) - LC260WX2-SLB3 (6870C- 0079C) - LC300W01-A3 (6870C- 0002C)
A)T-con Board: LC260W01-A5 (6870C-0011D)
LCD Panel Model: 26 inches
Note: Vcc input= 12V
1) U2= EL53241REZ.
If this IC failed, it will cause the TV No Display or Display Abnormal Color problem.
2) UC1= TL2223PC.
If this IC failed, it will cause the TV No Display, Full Screen of Vertical Lines/Bars or Display Distortion problem.
3) This is a DC-DC circuit PCB Board. If this small PCB malfunction, it will cause the TV No Display.
B) T-con Board: LC260WX2 (6870C-0036D)
LCD Panel: 26 inches Panel
Note: Vcc input= 12V
1) U7 is a SDRAM memory IC.
If this IC failed, it will cause the TV No Display or Display Distortion problem.
2) U1= R8A00011FT
If this IC failed, it will cause the TV No Display or Rainbow Display on the Screen.
3) U2= LPL1544.
If this IC failed, it will cause the TV No Display.
4) US1= LM2716MT
Power management IC. If this IC failed, it will cause the TV No Display.
C) T-con Board: LC260WX2-SLB3 (6870C-0079C)
LCD Panel: 26 inches
Note: Vcc input= 12V
1) U10= EPM3064A.
If this IC failed, it will cause the TV No Display.
2) U6 is a SDRAM memory IC.
If this IC failed, it will cause the TV No Display or Display Distortion problem.
3) UC1= TL22710D.
If this IC failed, it will cause the TV No Display, Display Distortion or Rainbow Display on the Screen problem.
4) U9= TPS65160
Power management IC (DC-DC circuit IC). If this IC failure, it will cause the TV No Display.
D) T-con Board: LC300W01-A3 (6870C-0002C)
LCD Panel: 30 inches
Note: Vcc input= 12V
1) UC1= KZ4E099E12.
If this IC failed, it will cause the TV No Display or White Screen problem.
2) This is a DC-DC circuit PCB board.
If this PCB board malfunctions it will cause the TV No Display.
3) CN7 is a cable connector.
If this connector or the cable contact not properly inserted or the connector solder pins dry joins, it will causing the display flickering or sometime No Display.

How to reset - Lenovo Yoga 2 - Lenovo A369i - Lenovo A526 - Lenovo S960 Vibe X - Lenovo Vibe X2 - Lenovo K920 Vibe Z2 Pro

Lenovo Yoga 2 - Lenovo A369i - Lenovo A526 - Lenovo S960 Vibe X - Lenovo Vibe X2 - Lenovo K920 Vibe Z2 Pro
Lenovo Yoga 2
Remove unlock pattern remove password on your Lenovo Yoga 2 Android tablet repair using recovery menu Save everything. Back up all of your data.
Android system recovery <3e> LRX22C.YT2-1050L_USR_S100081_1507241439_WW52_ROW dev-keys
1. Press and hold Volume UP + power buttons together for about 8-10 seconds.
2. In DROIDBOOT PROVISION OS menu screen select RECOVERY option using Volume DOWN or UP key.
3. Press POWER or CAMERA button to confirm.
4. Now you get in recovery factory reset option screen.
5. Use Volume down and highlight Wipe data / Factory reset and confirm using power or camera key.
6. Highlight Yes -- delete all user data and confirm again using power or camera key.
7. After it finishes wiping data press power or cam key to reboot your Lenovo Yoga2 tablet / reboot system now.
Second method
1. From the Home screen, press the Menu Key and touch Settings.
2. Touch the Backup and reset
3. Touch Factory data reset.
4. Touch Reset tablet.
5. Touch Erase everything.
Lenovo A369i
Save everything. Back up your data. Remove unlock pattern remove password on your Lenovo A369 Android phone
1. Press and hold both Volume UP + DOWN and the power buttons together for about 10 seconds.
2. When you see the Android robot and NO command press power shortly.
3. In Android system recovery menu highlight Wipe data / Factory reset using Volume DOWN key.
4. Press Volume UP to confirm.
5. Use Volume down again and highlight Yes -- delete all user data and confirm using Volume UP.
6. After it finishes wiping data press Volume UP to reboot system now.
Second method
1. From the Home screen, press the Menu Key and touch Settings.
2. Touch the Privacy
4. Touch Factory data reset.
5. Touch Reset phone.
6. Touch Erase everything.
Lenovo A526
Back up and save everything. Back up your data. Remove unlock pattern remove password on your Lenovo A526 Android phone
1. Remove battery and reinsert it. Make sure the battery has enough power and you charged it before hard reset operation.
2. Press and hold Volume UP + power buttons together for about 8-10 seconds.
3. When Andorid robot and No command displayed press POWER shortly.
4. In Android System recovery menu Use Volume down to highlight Wipe data / Factory reset and confirm using Volume UP.
5. Highlight Yes -- delete all user data and confirm again using Volume UP key.
6. After it finishes wiping data press Volume UP to reboot system now.
Second method
1. From the Home screen, press the Menu Key and touch Settings.
2. Touch the Backup and Reset
4. Touch Factory data reset.
5. Touch Reset phone.
6. Touch Erase everything.
Lenovo A536
Learn how to remove your forgotten password or unlock pattern on your Lenovo A536 mobile phone.
Follow the following instructions to repair your phone or to get access on your mobile. Back up and save everything. Back up all your important data, messages, images etc. Remove unlock pattern remove password on your Lenovo A536 Android phone tutorial.
1.Remove battery and reinsert it. Make sure the battery has enough power and you charged it before hard reset operation.
2.Press and hold Volume UP/DOWN + power buttons together for about 8-10 seconds.
3.When Andorid robot and No command displayed press POWER shortly.
4.In Android System recovery menu Use Volume down to highlight Wipe data / Factory reset and confirm using Volume UP.
5.Highlight Yes -- delete all user data and confirm again using Volume UP key.
6.After it finishes wiping data press Volume UP to reboot system now.
the software way from the menu. If you can access the phone you can factory reset the phone in the following way:
1. From the Home screen, press the Menu Key and touch Settings.
2. Touch the Backup and Reset
4. Touch Factory data reset.
5. Touch Reset phone.
6. Touch Erase everything
Lenovo S960 Vibe X
This is how to remove unlock pattern, remove password on your Lenovo S960 Vibe X Android phone
1. Power off your Lenovo VIBE X phone.
2. Press and hold Volume DOWN and UP buttons.
3. Keep pressing both Volume buttons and press Power button to turn on the phone.
When you see the Android recovery menu release all buttons.
4. Use Volume down button to highlight select Wipe data/Factory reset and use Power key to confirm.
5. Repeat with Yes -- delete all user data.
6. Wait until the phone reboots and Lenovo logo appears. All data wiped out.
Second method
1. From the Home screen, press the Menu Key and touch Settings.
2. Touch the Backup and RESET
3. Touch Factory data reset.
4. Touch Reset phone.
5. Touch Erase everything.
Lenovo Vibe X2
This is how to remove unlock pattern, remove password on your Lenovo Vibe X2 Android phone and wipe all user data. Learn how to remove forgotten password with these easy steps.
1.Power off your Lenovo Vibe X 2 phone.
2.Press and hold Volume DOWN and UP buttons.
3.Keep pressing both Volume buttons and press Power button to turn on the phone.
4.When you see the LENOVO LOGO release POWER but keep pressing the volume keys until Lenovo recoverycomes up.
5.Use the touch screen to select Wipe user data. (Choose english menu language.)
6.Repeat it and confirm on the next screen. Select YES to wipe user data.
Wait until the phone displays the MAIN MENU and select reboot.
Lenovo Vibe X2 factory reset from the menu
If you can access your phone the soft way:
1. From the Home screen, press the Menu Key and touch Settings.
2. Touch the Backup and RESET
3. Touch Factory data reset.
4. Touch Reset phone.
5. Touch Erase everything.
Lenovo K920 Vibe Z2 Pro
This is how to remove unlock pattern, remove password on your Lenovo K920 Vibe Z2 Pro Android phone wipe all data

1,Power off your Lenovo K920 Vibe Z2 Pro phone.
2.Press and hold Volume DOWN and press POWER button to turn on the phone.
3.When you see the LENOVO LOGO release POWER but keep pressing the volume key until a menu with a numbered list comes up.
4.Use the volume down key to select "6. Factory reset" in the list and press power. Note! This will delete everything, all of your data including SDcard files. Be sure to backup all of your data before doing a factory reset!
5.Wait until the phone reboots. The first boot will lasts a little longer than usual. Be patient. Lenovo K920 Factory reset the soft way from the menu if you are able to access the phone:
If you can access your phone the soft way:
1,Touch the Backup and RESET
2.Touch Factory data reset.
3.Touch Reset phone.
4.Touch Erase everything.

Sportsart T650 -T650M – Treadmill Error codes and troubleshooting

Sportsart T650 -T650M 
E-1-1 － Motor Encoder Error
1. Circumstance of Malfunction: Display shows E-1-1; unit does not operate
Troubleshooting
A. Turn unit off and on.
B. Inspect whether the encoder wire is connected to the drive board.
C. Replace the servo motor.
D. Replace the drive board
E-1-2－Motor Excessive Heat Error
Circumstance of Malfunction: Display shows E-1-2, the overheated motor error message.Unit operates at half speed
Troubleshooting
A. is the thermal sensor wire connected properly?
B. Is the servo motor amp draw too high?
C. Replace the drive board as a test.
D. Is the walk belt worn or too tight?
E. Has the machine been used for a long, long time without rest? If so, shut off the unit 30 minutes to cool.
E-1-3 －Motor Speed Error
Circumstance of Malfunction: Display shows E-1-3, the motor speed error message
Troubleshooting
A. Re-start the unit.
B. Inspect whether the encoder wire is attached properly.
C. Replace the drive board as a test.
D. Replace the servo motor
E-2-1 －IGBT Excessive Current Error
Circumstance of Malfunction: Display shows E-2-1, the IGBT excessive current error message.
Troubleshooting
A. Re-start the unit.
B. Inspect whether the servo motor wires are connected properly to the motor.
C. Replace the drive board.
D. Inspect the servo motor windings for a break.
E. Replace the servo motor.
E-2-2－IGBT Excessive Heat Error
Circumstance of Malfunction: Display shows E-2-2, the IGBT error code. The unit operates at half speed.
Troubleshooting
A. Inspect whether the drive board servo motor wires are connected properly.
B. Replace the drive board.
C. Inspect the servo motor windings for a break.
D. Replace the servo motor.
E-3-1 －Incline Calibration Error
Circumstance of Malfunction: Display shows E-3-1, the incline calibration error
Circumstance of Malfunction
A. Inspect whether the calibration switch wire is connected properly to the drive board.
B. Inspect whether the calibration switch operates normally.
C. Replace the drive board as a test.
E-4-2/ E-4-3 － Low/High Voltage Errors
Circumstance of Malfunction:(1) Display shows E-4-2, the low voltage error message. Re-start the unit after voltage stabilizes.
(2)Display shows E-4-3, the high voltage error message. Re-start the unit after voltage stabilizes.
Troubleshooting
A. Inspect exterior power supply.
B. Replace the drive board as a test.
E-8-1 －Communication Error at Start
Circumstance of Malfunction: Turn on unit power. Display shows E-8-1. Unit does not operate
Troubleshooting
A. Inspect whether the display IC is inserted properly.
B. Inspect whether the data cables are connected properly.
C. Replace the drive board as a test.
E-8-2 －Communication Error During Operation
Circumstance of Malfunction: During operation, E-8-2 appears. Unit stops operating.
Troubleshooting
A. Inspect whether the display IC is inserted properly.
B. Inspect data cable connections.
C. Replace the drive board as a test
Motor Does Not Operate
Definition: Motor does not operate. Drive board does not read encoder signal.
Circumstance of Malfunction
1.The drive board does not emit voltage to the motor, so the motor does not operate.
2.Motor malfunction prevents its operation.
3.The encoder cable is not inserted properly or is defective.
4.When motor operates in reverse for up to 0.3 seconds, and speed exceeds 0.4 KPH

Sony BDP-CX960 – How to access service mode – Service mode setting – Factory reset - Mechanical adjustments

Sony BDP-CX960 - BD SERVICE MODE

Note: The operation in this mode must use a remote commander.
Setting method of the BD service mode:
1. It is confirmed that the AC power cord is pulled out.
2. Press the [STOP], [OPEN/CLOSE] and [DISC EJECT] buttons, next the AC power cord is inserted.
3. The message “SERVICE MODE” appears on the fluorescent indicator tube and enter the BD service mode (it keeps pressing the buttons until the message is displayed).
Menu composition
1. Diag (test function)
2. Log (log display)
3. Factory Initialize (returns to the state of the factory shipment)
4. Ship Mode (ship mode setting and power off)
5. Network (network information display)
6. System Information (system information display)

Service Mode Menu (Top Menu)
This is the top menu of service mode.
Each function is accessed from this screen.
Operation:
[1] Moves to Diag screen.
[2] Moves to Log screen.
[3] Moves to Factory Initialize screen.
[4] Moves to Ship Mode screen.
[5] Moves to Network screen.
[6] Moves to System Information screen.
[UP]/[DOWN] Moves the cursor.
[ENTER] Moves to the screen of the item selected with the cursor

Diag
Operation:
[LEFT]/[RIGH] Selects the category.
[DOWN]/[ENTER] Moves to the selected category.
[RETURN] Moves to the top menu of the service mode.
Screen 2: Device test
Selects the device to test after selecting Device Test in screen 1.
Operation:
[LEFT]/[RIGH] Selects the device to test.
[ENTER] Executes the test.
[UP]/[RETURN] Returns to selection of test category.
Moves the cursor.
[DOWN] Moves the cursor.
List of test categories
Device Test
Audio Video Test
Changer Mecha Test

Log
Operation:
[1] Moves to the Error Log screen.
[2] Moves to the Command Log screen.
[UP]/[DOWN] Moves the cursor.
[ENTER] Moves to the item selected with the cursor.
[RETURN] Returns to the top menu of the service mode.

The page is changes if the [LEFT]/[RIGH] buttons are pressed on the
screen where the log was displayed.
Press the [RETURN] button to return from the log display.
Factory Initialize
Data base, remote control mode, password and other setting value are initialized, Gracenote relation file is deleted.
Operation:
Press the [ENTER] button in this screen when restoring the set to its factory settings.
[ENTER] Initialize the set to its factory settings.
[RETURN] Return to the top menu of the service mode.

Ship Mode
Changer Mechanism is changed to the ship mode. Eject all disc in the table before it enters this mode.
Operation:
Press the [ENTER] button in this screen when setting the chucking down, turn table free and door closed, and turn the power off.
[ENTER] Changes to the ship mode.
[RETURN] Return to the top menu of the service mode

Mechanical adjustment mode

Wiring for adjustment
The oscilloscope and the harness are prepared

It is easy to work when the harness (wire with the connector) like figure above is made. It is possible to substitute it by measuring the waveforms of JL5021 and JL5022 by the short-circuit of JL5020 and JL5024 when there is no harness

Procedure:
1. Connect the harness and the power cord of the set is inserted.
2. The message “ADJUST MODE” is appears on the fluorescent indicator tube.
3. Press the [PLAY] button, The message “TABLE_ADJUST *” is appears on the fluorescent indicator tube, and entering table adjust mode.
Press the [PAUSE] button, The message “DISC_ADJUST *” is appears on the fluorescent indicator tube, and entering disc sensor adjust mode.
Press the [STOP] button, The message “ADJUST_MODE *” is appears on the fluorescent indicator tube, and return the adjustment menu.

Apple PowerBook G4 Aluminum 17 – How to replace the LCD screen

Apple PowerBook G4 Aluminum 17

Remove the two 6.3 mm Phillips screws near the lower left and right corners of the display.
Removing these two screws may be difficult. It is helpful to open the display as much as possible for clearance to use a screwdriver. Also, a combination of #00 Phillips and small flathead screwdrivers along with a pair of tweezers may aid in removal.

The picture at left (rear panel already removed) shows the locations of the metal clips (shown in red) that snap on to the front display bezel. In the next few steps, you will use a small flathead screwdriver to release these clips from a ridge around the perimeter of the front display bezel.

When prying in the following steps, be sure not to damage the antenna cables that run around the perimeter of the front display bezel.

Insert the flat end of a spudger between the rear display bezel and the plastic rim attached to the front display bezel near the lower right corner of the display.

Do not try to insert the spudger between the front display bezel and its plastic surround.
While carefully prying the rear display bezel away from the display assembly, use a small flathead screwdriver to pry the small steel clip nearest the bottom right corner of the display away from the edge of the front display bezel.
Repeat the above procedure until you've released all the clips along the right side of the display.

Slightly lift the recently-freed corner of the rear display bezel to separate the clips with a spudger along the span of the clutch hinges.

Insert the flat end of a spudger between the rear display bezel and the plastic surround of the front display bezel near the lower left corner of the display.

Carefully pry the rear display bezel away from the front display bezel to expose the metal clips along the left side of the display.
Repeat the previous procedure to release the clips along the left side of the rear display bezel.

Slightly lift the lower edge of the rear display bezel and push it toward the top edge of the display, releasing the clips along the top edge of the rear display bezel.

Remove the rear display bezel and set it aside.

If necessary, remove the tape covering the display inverter.

Carefully lift the display inverter board from the side nearest the display data cable connector.
The display inverter is an extremely thin circuit board that is easily broken. Do not excessively bend or twist it during removal.

Use your fingernails to pull the ears on both sides of the inverter cable connector away from its socket on the inverter board.

Carefully lift the display inverter out of the clutch cover.

Don't try to remove the inverter just yet. It is still attached via the backlight cables.

Use your fingers to pull the backlight connector away from its socket on the inverter board.

Remove the display inverter from the display assembly.

If present, remove the piece of tape covering the display data cable.

Pull the display data cable straight away from its socket on the LCD.

Remove the four 3.2 mm Phillips screws securing the left side of the

LCD assembly to the front display bezel.

Remove the four 3.2 mm Phillips screws from the top portion of the LCD assembly.

Remove the four 3.2 mm Phillips screws along the right side of the display.

Carefully peel the protective translucent shield off the antenna board.

If you damage this during disassembly, be sure to tape over any tears or cracks to avoid unintended shorting.

Use the flat end of a spudger to pry the the antenna cables straight up off their sockets.

Remove the single 2.5 mm Phillips screw securing the display data cable ground loop to the front display bezel.

Remove the two 10.3 mm T8 Torx screws securing the left side of the clutch hinges to the front bezel.

Remove the two 10.3 mm T8 Torx screws securing the center of the clutch hinges to the front bezel.

Remove the two 10.3 mm T8 Torx screws securing the right side of the clutch hinges to the front display bezel.

Press the display release button to release the top edge of the display from the upper case.

Carefully wiggle and lift the display assembly straight up off its positioning pins on the clutch hinges.
In the following steps, you will use a heat gun to soften the adhesive securing the metal LCD frame to the front display bezel. Heat guns have the capability of producing an extremely hot jet of air, so be sure not to overheat the LCD panel.
With the heat gun set to low, start by heating the front display bezel near the upper left corner of the display panel.

Insert a plastic opening tool between the metal LCD frame and the front bezel.

Be sure you are prying between the metal LCD frame and the front bezel, not between the metal LCD frame and the LCD. It may be necessary to reheat this area until the adhesive yields enough to insert the edge of a tool.
Use the flat end of a metal spudger to gently pry up the adhesive securing the metal LCD frame to the front bezel, taking special care not to scratch the LCD panel.

While it is still inserted between the metal LCD frame and the front bezel, run the edge of your metal spudger along the top edge of the display to separate the adhesive securing the two pieces together, heating the area you are working on with a heat gun as necessary.

If the adhesive is hard to separate, use a heat gun to lightly heat the area you are working on.

Continue running the edge of your metal spudger between the LCD frame and the front bezel until the right, bottom, and left sides of the LCD are free.

Lift the LCD by its top edge only. Lifting the LCD by its lower edge will damage the backlight cables. Lift the LCD out of the front display bezel, using your metal spudger to release any adhesive if necessary.

With the LCD partially removed from the front bezel, carefully push the backlight connector through its tunnel in the front bezel.

LG TCON board – Troubleshooting - LC300W01-B5 (6870C-0009C) - LC320W01-SLA1 (6870C-0142B) - LC320WX3 (6870C-0087A) - LC320WXN-SAA1 (6870C-0195A) - LED LCD television

LG - LC300W01-B5 (6870C-0009C) - LC320W01-SLA1 (6870C-0142B) - LC320WX3 (6870C-0087A) - LC320WXN-SAA1 (6870C-0195A)
A) LC300W01-B5 (6870C-0009C)
LCD Panel : 30 inches
Note: Vcc input= 12V
1) U8 is a SDRAM memory IC.
If this IC failed, it will cause the TV No Display or Display Distortion.
2) UC1= TL22240D.
If this IC failed, it will cause the TV No Display, Display Distortion or Display Color Abnormal problem.
3) U3 & U4= BUF11702.
If this IC failed, it will cause the TV No Display.
4) This is a DC-DC PCB board.
If this small PCB board malfunction and causing no voltage output, it will cause the TV No Display problem.
B) LC320W01-SLA1 (6870C-0142B)
LCD Panel : 32 inches
Note: Vcc input= 12V
1) U10 is a SDRAM memory IC.
If this IC failed, it will cause the TV No Display or White Screen problem.
2) UC1= LGDP4801A.
If this IC failed, it will cause the TV No Display or Display Distortion problem.
3) RS1 is a Crystal.
If this component failure, it will cause the TV No Display.
4) U13= TPS65161 is a power management IC.
If this IC failed, it will cause the TV No Display
C) LC320WX3 (6870C-0087A)
LCD Panel : 32 inches
Note: Vcc input= 12V
1) U1 is an EEPROM memory IC.
If this IC failed, it will cause the TV No Display or White Screen problem.
2) UC1= KE5M3U2109.
If this IC failed, it will cause the TV No Display or White Screen problem.
3) U1= TPS65161 is a power management IC.
If this IC failed, it will cause the TV No Display.
4) Q3 (MOSFET).
If this component failure, it will cause the TV No Display.
D) LC320WXN-SAA1 (6870C-0195A)
LCD Panel : 32 inches
Note: Vcc input= 12V
1) U6:
If this IC failed, it will cause the TV No Display.
2) UC1= LGDP4803C.
If this IC failed, it will cause the TV No Display or Display Distortion problem.
3) US1= TPS65162 is a power management IC.
If this IC failed, it will cause the TV No Display.

Apple iPad Wi-Fi – Disassembling procedure - How to replace the battery

BATTERY REPLACEMENT PROCEDURE 

If your display glass is cracked, keep further breakage contained and prevent bodily harm during your repair by taping the glass.
Lay overlapping strips of clear packing tape over the iPad's display until the whole face is covered.
This will keep glass shards contained and provide structural integrity when prying and lifting the display.
Do your best to follow the rest of the guide as described. However, once the glass is broken, it will likely continue to crack as you work, and you may need to use a metal prying tool to scoop the glass out.
Wear safety glasses to protect your eyes, and be careful not to damage the LCD screen.

Insert a metal spudger between the top edge of the display assembly and the rear panel assembly.

Rotate the spudger away from you to release the tabs along the top edge of the display.
Insert a second metal spudger between the top edge of the display assembly and the rear panel assembly to keep the tabs from snapping back into place.

With one spudger, work your way along the right edge of the iPad.

The front panel is held to the aluminum back by metal clips on the top, bottom, and left sides. The right side has plastic tabs which slide into recesses in the backplate.
Once the clips are released, lift the left side of the front panel up and slide it to the left to clear the tabs from the aluminum backplate.

Lift the display assembly away from the rear panel assembly by its bottom edge.

Do not attempt to remove the display at this time, as it is attached to the rear panel assembly.

In the following steps, you will disconnect the three cables attaching the display assembly to the logic board. The cables are for the following components:

Digitizer
Ambient Light Sensor
Display Data Cable

Use the edge of a plastic opening tool to flip up the retaining flaps holding the digitizer ribbon cables in their sockets on the logic board.

Be sure you are flipping up the retaining flap, not the socket itself.
Pull the digitizer ribbon cables straight out of their sockets.

Use a plastic opening tool to remove the ambient light sensor connector from its socket by gently prying upward.

Disconnect the display data cable from the main board by flipping up the metal retainer by its black plastic pull tab.

Pull the cable connector away from its socket.
Pull the connector parallel to the face of the logic board.

Remove the display assembly from the rear panel assembly.

Use the edge of a plastic opening tool to:

Pry the side button connector up off the logic board from underneath the wires.
Pry the speaker connector up off its socket on the logic board from beneath the speaker wires.
Carefully flip up the ZIF ribbon cable retaining flap on the socket near the headphone jack.
Be sure you are prying up on the retaining flap, not the socket itself.
Pull the headphone jack ribbon cable toward the left side of the iPad to disconnect it from its socket.

Remove the following screws

securing the logic board to the rear panel assembly.
Two 4.56 mm T5 Torx screws.
Two 3.76 mm T5 Torx screws.

Use the edge of a plastic opening tool to carefully pry the dock cable connector straight up off the logic board.

Lift the logic board out of the rear panel assembly.

Remove the two 2.84 mm T5 Torx screws securing the speaker assembly to the rear panel assembly.

Remove the single T5 Torx screw securing the middle of the dock cable to the rear panel assembly.

Remove the two 2.84 mm T5 Torx screws securing the dock connector cable to the rear case.

Using a plastic opening tool, carefully remove the plastic cover shielding the WiFi/Bluetooth board and dock connector cable. Carefully pry the Wi-Fi and Bluetooth antennas up from their respective sockets on the Wi-Fi/Bluetooth board.

Lift the dock connector cable out of the rear panel assembly.

De-route the speaker cable from the left side of the battery case.

De-route the Wi-Fi antenna through its channel in the speaker assembly.

Lift the speaker assembly and push it forward until the ports clear the bottom side of the lower case.

Remove the speaker assembly from the rear panel assembly.

The battery is held to the rear panel by an excessive amount of adhesive. Proceed with patience and caution.

Use the flat end of a spudger to gently pry the battery up from the the lower case.
Gently continue to enlarge the gap by wiggling the spudger and running it along the right side of the battery.
Continue to pry until the right side of the battery is free from the rear panel.

Insert the flat end of a spudger under the top edge of the battery and continue to separate the adhesive.

Continue doing so until the top of the battery is free from the rear panel.

When there is enough clearance, use your hands to peel the battery off any adhesive still securing it to the rear panel.

Remove the battery from the rear panel.

BN44 00129C – Samsung SMPS board Circuit diagram

Working
1. When the AD board is in DPMS state:
The IP has been designed so that it operates with a power consumption of less than 0.6W of.
The Scaler consumes power up to 37mA
The power to the panel is switched off
2.When the AD board is operating normally:
The maximum power consumption of the panel lamps is described below (It may vary depending on the panel manufacturer)
17" : 4*(7.5mA*650mVrms)=4*4.9=19.6W
19: : 4*(7.5mA*720mVrms)=4*5.4=21.6W
The power consumption of the Panel Control board is as follows: 5V*720mA=3.6W
The power consumption of the Scaler is as follows: 3.3V*245mA + 1.8V*300mA = 1.35W

Schematic [Circuit diagram]

Click on the schematics to zoom in

1. Inverter:
A conversion device that converts DC rated voltage/current to high ones necessary for the panel lamp.
2. DC/DC(Regulator):
General term for DC to DC converting devices.  The IP board receives 5V and outputs 1.8 or 3.3V that is supplied to the scaler (GM5726).
3. Power MosFET:
The IP board receives 5V and outputs a lower voltage in DPMS mode and supplies the whole 5V for the panel operating board in normal conditions. In that case, the switching of Power MosFET is controlled by Micom.
4. Scaler: 
Receives the digital TMDS and analog R,G,B signals and convert them to proper resolutions using up- or down- scaling that are transferred to the panel in the LDVS formats.
5. Crystal(Oscillator):
Use one 14.318MHz oscillator externally to supply power to both MCU and Scaler at the same time.
6. SCALER & EEPROM:
I2C is a two-way serial bus of two lines that supports communications across the integrated circuits as well as between FLASH and EEPROM.
In particular, FLASH and Scaler (GM5726) use the SDR direct bus for mutual communications, which is an effective, speedy system because it allows 4 additional address/data lines compared to the old serial systems.
7. Function Key:
A certain keystroke generates a certain electrical potential, which is transferred into ADC input port of the Scaler and then converted to a digital value by the A/D converter of the chip. The digital value (data) is a clue to which key is entered.