Troubleshooting Guide (mech)
1262-4100 Rev 2
Sony Mobile Communications AB
– Company Internal
35(41)
Problem Areas
1.23 Network & Signal
1.23.1 No/Poor signal
Check:
Inspect the main antenna on the Rear Cover Assembly.
Action:
1. If dirty
– clean it.
2. If damaged
– replace the Antenna Holder.
Check:
Inspect the main antenna contact pins on the Rear Cover
Assembly and contact pads on the PBA.
Action:
1. If dirty or oxidized
– clean the pads and pins.
2. If the pads are damaged
– replace the Antenna Holder.
3. Replace PBA.