Before removing the system board, 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 cord from the tablet.
3.Disconnect all external devices from the tablet.
4.Remove the back cover (see Back cover on page 18).
5.Remove the middle frame (see Middle frame on page 20).
6.Disconnect the battery cable from the system board (see Battery on page 21).
Remove the system board:
1.Disconnect the 3G antenna cables (1) from the system board 3G terminals.
2.Disconnect the WWAN antenna cable (2) from the system board WWAN terminal.
3.Disconnect the WLAN antenna cable (3) from the system board WLAN terminal.
4.Disconnect the rear-facing webcam cable (4) from the system board.
5.Disconnect the front-facing webcam cable (5) from the system board.
6.Release the ZIF connector (1) to which the button board cable is attached, and then disconnect the button board cable from the system board.
7.Release the ZIF connector (2) to which the display panel cable is attached, and then disconnect the display panel cable from the system board.
8.Release the ZIF connector (3) to which the TouchScreen board cable is attached, and then disconnect the TouchScreen board cable from the system board.
