9.
Front camera is not working:
Solution:
Flash the handset with latest SW
Check if the Camera is obviously damaged, if yes, Replace the Camera ;
Check if the ground impedance of each pin of the Camera connector (except the ground pin)is low(lower than
grade ),if yes, Replace the resistor of the corresponding pin;
Check if the series resistors on each network of the Camera connector have pseudo soldering ,if yes, Carry out repair
soldering of the series resistors on each signal line;
Check the PMU normally or not ,then Re-solder PMU or charge it.
Check the CPU normally or not, then Re-Solder CPU or change it.
Camera
connector
CPU
PMU
