Nokia C1-02 Service Manual page 14

13) Remove the KEYMAT.
15) Open the USB DOOR.
17) Release also the other side with the SS-93.
14
14) Unscrew the four Torx+ size 6 screws. Do not use
them again. Discard them.
16) Use the SS-93 to release the shown side of the
ENGINE BOARD.
18) Lift up the bottom end of the ENGINE BOARD and
then pull it to direction shown. By using this
procedure, the AV JACK in the top part of the device is
released properly.
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Nokia C1-02
RM-643 / RM-644
Service Manual Level 1&2
Version 1.0