Micromax Q452, Руководство по обслуживанию

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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