LG CT815 Service Manual page 180

9. PCB LAYOUT
CN101 B to B conn.
Can not power on
Can not operate vibrator
Can not detect USIM
Can not operate Camera
CN102 Battery Conn.
Can not power on
Can not detect battery
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Only for training and service purposes
CT815
- 181 -
U101 Wi-Fi&BT&FM Module
Can not use WLAN Service, BT
and FM Radio Function
BAT100 Backup Battery
RTC reset
LGE Internal Use Only