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No matter which sensor fails, swap the modules and reassemble.
2.
If only
one
sensor fails, there are two conditions :
Black screen under camera APP, but APP didn't shutdown. (sensor might be initiated,
but not sending any frame.):
(1) Possibly MIPI CSI problems, check U1201 (ISP) and
R1227
for SMT problems.
(2) Demount the shielding and check all highlighted components in the picture below.
APP shutdowns right after the opening it and shows a message. (sensor didn't initial)
(1) Please check both front/rear CAM connectors for any defect. Besides, check
PU9504, PU9505, PU9506, PU9508
(2) Probe the impedance of the pins in the table below, and compare the with normal
PCBs. If any pin didn't match the same, please swap or change the corresponding IC.
(3) If MCLK, I2C pin didn't match, check SMT issues again.
Pin
(corresponding IC)
Wide Cam fail
PC9517.1
(PU9506)
Tele Cam fail
PC9511.1
(PU9508)
VGA Cam fail
PC9507.1
(PU9504)
Camera fail - BMMI
Power net
MCLK
C1335.1
L1401.2,
C1410.1,
C1337.1
C1412.1,
D1401.1
R1223, R1224, R1225, R1226,
by X-ray for SMT issues.
I2C
R0313.2, R0314.2
R0315.2, R0316.2
PU9501,
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