IQ449 service manual
Does not charge
Remind error during
charge
Remind: “fault connection”
“battery overheat”
Change battery
Re-flash SW
NO
Check battery connector
testing Pin, if the bias resis
and vatge be normal.
NO
NO
YES
Check Q6100 R6100 R6101 be
Replace
YES
normal.
NO
or
re-solder
YES
Replace or re-solder
U0100 SC7710
YES
Resolved
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Summary of Contents for IQ449
Page 5: ...IQ449 service manual DISASSEMBLY AND ASSEMBLY All manuals and user guides at all guides com...
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Page 9: ...IQ449 service manual SIM CARD AUDIO jack All manuals and user guides at all guides com...
Page 10: ...IQ449 service manual SYSTEM BLOCK DIAGRA All manuals and user guides at all guides com...
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Page 15: ...IQ449 service manual BT WIFI circuit All manuals and user guides at all guides com...
Page 17: ...GPS All manuals and user guides at all guides com...
