Sony Xperia Z1 Troubleshooting Manual page 56

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Problem Areas: Network & Signal
Check:
Replace the Main PBA with a known working one and test
the network.
Action:
1. If the network is still not working – replace the Main
Frame Assy.
2. Replace the Main PBA.
1277-9814 Rev 2
Sony Ericsson Mobile Communications AB – Company Internal
Troubleshooting Guide (mech)
56(63)

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