
Troubleshooting Guide (mech)
1279-7185 Rev 1
Sony Mobile Communications AB – Company Internal
28(68)
Problem Areas
1.12 Bluetooth and WLAN
1.12.1 Bluetooth or WLAN connection
failure
Check:
Inspect the BT + WLAN Flex Antenna contact pads on Sub
Antenna Assy and the contact pins on main PBA.
Action:
1. If dirty or oxidized – clean the pads and pins.
2. If the contact pads on Sub Antenna Assy or BT + WLAN
Flex Antenna film is damaged – replace the Sub Antenna
Assy.
3. If the contact pins on main PBA is damaged – replace
Main PBA.