Sony C2104 - Sim; SIM Not Detected

Troubleshooting Guide (mech)
1273-2281 Rev2
 Sony Mobile Communications AB –
Company Internal
42(48)
Problem Areas
1.28 SIM
1.28.1 SIM not detected
Check:
Inspect the external port of the SIM card holder and check if
a SIM card can be properly inserted.
Action:
If dirty or clogged – clean the external port.
Check:
Inspect the SIM card holder on Main PBA.
Action:
If damaged, Replace Main PBA.