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Check the Signal level at TP1 (U5100 )
Check the signal level at TP2 (C5122)
Check the Antenna contact point(TP3)
BT-WiFi will work properly
LGE Internal Use Only
START
Yes
Yes
well(ANT5100)
Yes
No
No
Check C5122, C5100, L5100, L5102
No
Check Antenna Clip or
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3. TROUBLE SHOOTING
Replace U5100
Replace Antenna
Only for training and service purposes
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