HTC One M9 – Disassembling procedure

Insert a SIM card eject tool or a paperclip into the small hole in the SIM card tray, located on the upper right hand side of the phone. Press to eject the tray. This may require a significant amount of force.
When reinserting the SIM card, ensure that it is in the proper orientation relative to the tray.

Insert a SIM card eject tool or a paperclip into the small hole in the SIM card tray, located on the lower right hand side of the phone. Press to eject the tray. This may require a significant amount of force.
When reinserting the SIM card, ensure that it is in the proper orientation relative to the tray.

Using a plastic opening pick or a spudger, gently pry and remove the top of the case. Remove the two 4mm T5 Torx screws on the top of the case.

Work a plastic opening pick around the perimeter of the device to separate the rear case from the display assembly. Be careful around the power and volume buttons, as they are fairly delicate.

Use a pair of tweezers to disconnect the blue and white antenna cables. Remove the two 1.5mm Phillips #00 screws securing the battery connector to the motherboard.

Use your fingers or a spudger to disconnect the ZIF connector. Use a spudger to disconnect the bottom speaker ZIF connector.

With the tweezers, carefully lift up on the tape covering the electrical strip shown in the picture.

Be careful with the tape, as it can tear easily. Use a spudger to disconnect the ZIF connector.

Disconnect the remaining three ZIF connectors. The third ZIF connector is mostly underneath the motherboard. When reassembling your device, make sure it is placed back underneath.

Remove the dual LED flash cover. Use a pair of tweezers to disconnect the two antenna cables.

Remove the three 4 mm T5 Torx screws securing the motherboard.

Use a pair of tweezers to gently lift the vibrator off of the motherboard. Use a plastic opening tool or your hands to pry the motherboard out of the case. The motherboard is secured with adhesive, so you may need to use an iOpener or heat gun to loosen the adhesive. Refer to the iOpener guide for info on this.