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Does not charge
Change battery
Check Q6100 R6100 R6101 be
Remind error during
charge
Remind: "fault connection"
"battery overheat"
NO
Check battery connector
testing Pin, if the bias resis
and vatge be normal.
YES
normal.
YES
Replace or re-solder
U0100 SC7710
YES
Resolved
Re-flash SW
NO
NO
Replace
NO
or
re-solder
IQ449 service manual
YES
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