3. TROUBLE SHOOTING
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START
Change MAIN Board.
ANTENNA Clean the connection parts
Check the components around U1
Check the components around WCN3680
Check the components around FL1000
ANT5101, ANT5102 Check the
connection between antenna and clip
Check the TP1 Signal exist?
Check the TP2 Signal exist?
Check the TP3 Signal exist?
No
No
No
No
Yes
Yes
Yes
Yes