Troubleshooting Guide (mech)
1261-4721 Rev 3
Sony Mobile Communications AB
– Company Internal
31(62)
Problem Areas
1.12 Bluetooth and WLAN
1.12.1 Bluetooth or WLAN connection
failure
Check:
Inspect the WLAN and Bluetooth antenna on the Frame
Rear Assy.
Action:
1. If dirty
– clean it.
2. If the antenna is damaged
– replace the Frame Rear
Assy.
Note: Ensure the BtB connector of battery is
disconnected in the following steps!
Check:
Inspect the WLAN and Bluetooth antenna contact pads on
the Frame Rear Assy and the contact pins on the PBA.
Action:
1. If dirty or oxidized
– clean the pads and pins.
2. If the pads are damaged
– replace the Frame Rear Assy.
3. Replace board.