Sony C2104 - Bluetooth and WLAN; Bluetooth or WLAN connection failure

Troubleshooting Guide (mech)
1273-2281 Rev2
 Sony Mobile Communications AB –
Company Internal
25(48)
Problem Areas
1.12 Bluetooth and WLAN
1.12.1 Bluetooth or WLAN connection
failure
Check:
Inspect the Antenna BT WIFI on the Middle Frame
Assembly.
Action:
1. If dirty – clean it.
Check:
Inspect the contact pads on the Antenna BT WIFI and the
contact pins on the main PBA.
Action:
1. If dirty or oxidized – clean the pads and pins.
2. If defective or damaged – replace the Middle Frame
Assembly.
3. If the pins are damaged – replace Main PBA