Sim; Sim Not Detected; Incorrect Sim Indicated - Sony Xperia S LT26i Troubleshooting Manual

Problem Areas

1.30 SIM

1.30.1 SIM not detected

Check the SIM holder.
Check:
Inspect the BtB connector of PBA NFC to the main PBA.
Action:
1. If not properly connected – disconnect and reconnect.
2. If dirty or oxidized – clean both sides of the BtB
connector.
Check:
Inspect the PBA NFC.
Action:
1. If the SIM connector on the PBA NFC or its BtB connector
is damaged – replace the PBA NFC.
2. Replace board.

1.30.2 Incorrect SIM indicated

Check:
Check whether the phone is locked to a particular operator
and whether the correct operator SIM is being used.
Action:
1. Use a proper operator SIM or test SIM.
2. Replace board.
1257-2931 Rev 6

Sony Mobile Communications AB – Company Internal
Trouble Shooting Guide Repair Instruction Mechanical/
52(57)