Troubleshooting Guide (mech)
1277-1356 Rev 2
© Sony Mobile Communications AB – Company Internal
31(45)
Problem Areas
1.19 External Memory
1.19.1 Memory Card not detected
Check:
Inspect the external area of the memory card holder and
check if a memory card can be properly inserted.
Action:
1. If dirty or clogged – clean the holder.
Check:
Inspect the SIM Board.
Action:
1. If dirty or clogged – clean the holders.
2. If SIM Board is damaged – replace the SIM Board, SIM
Board Adhesive and Flash LED Gasket.
Check:
Check the connection of the BtB connector from SIM Board
to the Main PBA.
Action:
1. If not properly connected – disconnected and
reconnected it.
2. If dirty or oxidized – clean it.
3. If the connector or the SIM card holders of the SIM Board
is damaged – replace the SIM Board.
4. Replace the Main PBA.
G-sensor Calibration should be performed after
replacing SIM Board.
For G-sensor Calibration, refer to 1277-8589 Trouble
Shooting Application.
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