Maintenance and Service Guide

4. Remove the SIM slot cover (see SIM slot cover on page 13).

5. Remove the back cover (see

Back cover on page 14).

6. Remove the middle frame (see

Middle frame on page 16).

7. Disconnect the battery cable from the system board (see

Battery on page 19).

Remove the system board:

1. Detach the top speaker cable (1) from the display panel assembly. (The top speaker cable is

attached to the display panel assembly with double-sided adhesive.)

2. Disconnect the front-facing webcam cable (2) from the system board.

3. Unsolder the vibrator module cables (3) from the system board.

NOTE: The vibrator module red cable is soldered to the system board “+” vibrator module

terminal. The vibrator module black cable is soldered to the system board “-” vibrator module

terminal.

4. Unsolder the receiver module cables (4) from the system board.

NOTE: The receiver module red cable is soldered to the system board “+” receiver module

terminal. The receiver module black cable is soldered to the system board “-” receiver module

terminal.

5. Disconnect the front-facing webcam cable (5) from the system board.

6. Release the ZIF connector (6) to which the power/volume button board cable is attached, and

then disconnect the power/volume button board cable from the system board.

7. Release the ZIF connector (1) to which the TouchScreen cable is attached, and then disconnect the

TouchScreen cable from the system board.

8. Disconnect the RF cable from the terminal (2) on the system board.

System board