Bluetooth And Wlan; Bluetooth Or Wlan Connection Failure - Sony XPERIA ST27i Troubleshooting Manual

Problem Areas

1.12 Bluetooth and WLAN

1.12.1 Bluetooth or WLAN connection
failure
Check:
Inspect the WLAN and Bluetooth antenna on the Back
Housing Assy.
Action:
If dirty – clean it.
Check:
Inspect the WLAN and Bluetooth antenna contact pads on
the Back Housing Assy and the contact pins on the Main
PBA.
Action:
1. If dirty or oxidized – clean the pads and pins.
2. If the pads are damaged – replace the Back Housing
Assy.
3. Replace board.
1265-6294 Rev 4
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Troubleshooting Guide (mech)
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