LG -D175F Service Manual page 229

10. HIDDEN MENU
Auto Detecting Item
Check below Items
-> USIM Card & USIM Card2 : connecting both SIMs is PASS
-> SD Card : connecting is PASS
-> Ear Phone : No connecting is PASS
-> Charging Mode : connecting is PASS
-> Battery : higher than 20% is PASS
Key Press Test
Check below Items
Up/Down key : Hard Key
Power key : Hard Key
Menu key : Hard Key
Home key : Hard Key
Back key : Hard Key
SIM switch key : Hard Key
Proximity Sensor : Blind the Proximity sensor
Camera Test – Snapshot
Touch screen to capture
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