User Guide

Table of Contents
Introduction to camera module troubleshooting...............................................................................................8–5
The effect of image taking conditions on image quality...................................................................................8–6
Camera construction............................................................................................................................................8–10
Image quality analysis ........................................................................................................................................8–12
Testing for dust in camera module...............................................................................................................8–12
Testing camera image sharpness..................................................................................................................8–13
Dirty camera lens protection window..........................................................................................................8–13
Image bit errors..............................................................................................................................................8–14
Camera troubleshooting flowcharts...................................................................................................................8–15
Camera hardware failure message troubleshooting...................................................................................8–15
Camera baseband hardware troubleshooting.............................................................................................8–16
Front camera viewfinder troubleshooting...................................................................................................8–17
Front camera bad image quality troubleshooting......................................................................................8–18
List of Figures
Figure 67 Blurred image. Target too close..........................................................................................................8–6
Figure 68 Blurring caused by shaking hands.......................................................................................................8–7
Figure 69 Near objects get skewed when taking images from a moving vehicle...........................................8–7
Figure 70 Noisy image taken in +70 degrees Celsius.........................................................................................8–8
Figure 71 Image taken against light....................................................................................................................8–8
Figure 72 Flicker in an image; object illuminated by strong fluorescent light................................................8–9
Figure 73 A lens reflection effect caused by sunshine........................................................................................8–9
Figure 74 Good image taken indoors.................................................................................................................8–10
Figure 75 Good image taken outdoors..............................................................................................................8–10
Figure 76 Camera module cross section and assembly principle....................................................................8–11
Figure 77 Camera module bottom view including serial numbering.............................................................8–11
Figure 78 Effects of dust on optical path...........................................................................................................8–12
Figure 79 Image taken with clean protection window....................................................................................8–14
Figure 80 Image taken with greasy protection window.................................................................................8–14
Figure 81 Bit errors caused by JPEG compression.............................................................................................8–14
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Camera Module Troubleshooting Nokia Customer Care
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