Nokia RM-57 Service Manual page 321

RM-57/58
Camera Module Troubleshooting Nokia Customer Care
Figure 88 Shaken image
Camera white balance failure and overexposure due to presence of ambient light
Because the spectral output of the flash is known, the white balance and the exposure control of the camera
work in optimal way with the flash in total darkness. This is why some of the pictures may fail, if there is some
ambient light present when the image is taken.
If the flash works correctly in dark, there is no need to change the flash module.
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