Sony Xperia Z3 Troubleshooting Manual page 53

Problem Areas: Network & Signal
Check:
Inspect the RF connector of RF cable to the Main PBA.
Action:
1. If not properly connected – disconnect and reconnect it.
2. If dirty or oxidized – clean it.
3. If the RF cable is damaged – replace the RF cable.
4. Replace Main PBA.
1288-9441 Rev 2
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Sony Mobile Communications AB – Company Internal
Troubleshooting Guide (mech)
53(59)