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1.
Make sure the
check if there are any SMT issues.
2.
Please check the battery voltage (> 3.7 V) by probing T9603 or T9602. Also
remember probe C3304.1 if a USB cable is connected to check the 5V input.
3.
Check the
KEY FPC
there are any defects or SMT issues (sunken pins, cracks, foreign matters)
4.
Both Rear CAM and Front CAM FPC contact with there connector firmly.
Please remove the FPC to check
5.
Make sure if the
If it looks fine, please remove the FPC and check both sides of the connector
if there are any defects or SMT issues. You can swap IOFPC or SUB board to
compare the results.
6.
Make sure your image and modem image are correct.
Connector defects
Boot up issues - ASSY
battery FPC
contacts well with the connector CON9601. Also
and
LCM FPC
IOFPC
connectors are contacts firmly with no deformation.
contact. Also check CON2501, CON1602 if
FPC w deformation
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