Camera Fail - Blu Dash 4.5 Service Manual

3.10 Camera fail

First, change a new camera module, check camera connector ok or not;
Second, check AVDD, DOVDD, if fail check J1400
Third, use oscilloscope to test I2C, CAM_RST, CAM_MCLK, CAM_PCLK, MIPI_DATA,
and MIPI_CLK. If signals abnormal check U300, re-hot or change a new one.
Camera fail
Is camera connector
soldering well?
Y
Check camera ok or
not?
Y
Check AVDD
DOVDD ok or
not?
Y
Check each signal
of Camera is ok or
not?
N
Re-solder or
change new
one
N
Change a new
camera
N
Check R1409
component
N Hot U300 or
change a new one