Troubleshooting Guide (mech)
1261-4721 Rev 3
Sony Mobile Communications AB
– Company Internal
56(62)
Problem Areas
1.33 SIM
1.33.1 SIM not detected
Check:
Inspect the SIM Tray.
Action:
1. If dirty
– clean it
2. If damaged
– replace it.
Note: Ensure the BtB connector of battery is
disconnected in the following steps!
Check:
Inspect the SIM card holder.
Action:
If dirty or oxidized
– clean the holder.
Check:
Inspect the both sides of the ZIF connector on the Main PBA
and the FPC Top Flex.
Action:
1. If not properly connected
– disconnect and reconnect.
2. If dirty or oxidized
– clean it.