Network & Signal; No/Poor Signal - Sony Xperia Z1 Troubleshooting Manual

Problem Areas
1.32 Network & Signal

1.32.1 No/Poor signal

Check:
Inspect the main antenna film on the Main Antenna Speaker
Sub Assy.
Action:
If damaged – replace the Main Antenna Speaker Sub Assy.
Check:
Inspect the contact pads on the Main Antenna Speaker Sub
Assy and the contact pins on PBA Sub.
Action:
1. If dirty or oxidized – clean the pads and pins.
2. If the contact pads are damaged – replace the Main
Antenna Speaker Sub Assy.
1279-7185 Rev 1
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Troubleshooting Guide (mech)
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