Nokia n80 User Manual page 289

RM-91; RM-92
Camera Module Troubleshooting Nokia Customer Care
Figure 79 Bit errors caused by JPEG compression
One type of bit error is a lack of bit depth. In this case, the image is almost totally black under normal
conditions, and only senses something in very highly illuminated environments. Typically this is a contact
problem between the camera module and the phone main PWB. You should check the camera assembly and
connector contacts.
If the fault is in the camera module, bit errors are typically visible only when using some specific image
resolution. For example, in case of a viewfinder fault, the error might exist but is not visible in a full size
image.
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