LG LG-H815 - Bt;Wifi Part

Copyright ⓒ 2015 LG Electronics. Inc. All right
reserved. Only training and service purposes
LGE Internal Use Only
3. TROUBLE SHOOTING
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BT&WIFI
3.8 BT/WiFi PART
Checking Flow Image
Yes
Yes
Check the TP1,TP2
Signal exist?
Check the components
around U5100
NO
START
Yes
ANT8105, ANT8104
Check the connection
between antenna
and clip
ANTENNA Clean
the connection parts
NO
Change MAIN Board.
Check the TP3,TP4
Signal exist?
Check the components
around U8902
NO
ANT8105
(GND)
ANT8104
(signal)
BOTTOM
BOTTOM
U5100
U8902
TP1(2G Tx)
TP3(5G Rx)
TP2(5G Tx)
TP4(2G Rx)
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