Checking Gps/Wifi/Bt - LG -L25 Service Manual

3.10 Checking GPS/WIFI/BT

3.10.1 Checking GPS
Check if the Antenna
Contacts in good Condition
(ANT1102, ANT1103)
Checking voltage at TP1(C1137)
Change the GPS IC(U1103)
Check if GPS works well
GPS will work properly
LGE Internal Use Only
GPS On
YES
+2.75V
YES
YES
Change the Antenna Contact
NO
Check PMIC(U4100)
NO
Change Main Board
NO
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3. TROUBLE SHOOTING
Only for training and service purposes