
X458 L3 Service Manual
32
Check charger and cable without
problem, or change good one
Connect the charger without
battery put in, check if the voltage
of positive pole is around 3.6V.
Check charge protective tube be
normal.
Replace or re-solder CPU MT6260
No charge
Does not charge
– no charge
in
Change battery
Re-flash SW
Resolved
Check if I/O connector
works normal
Replace
or
re-solder
it
NO
NO
YES
YES
NO
YES
YES
YES
YES
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Summary of Contents for X458
Page 13: ...X458 L3 Service Manual 13 All manuals and user guides at all guides com ...
Page 14: ...X458 L3 Service Manual 14 Output of SIM Card All manuals and user guides at all guides com ...
Page 17: ...X458 L3 Service Manual 17 Display interface All manuals and user guides at all guides com ...
Page 48: ...X458 L3 Service Manual 48 All manuals and user guides at all guides com ...