User Guide

Table of Contents
Introduction to baseband troubleshooting............................................................................................................................6–5
Display information: "Contact service".....................................................................................................................................6–5
Power and charging troubleshooting......................................................................................................................................6–6
Phone is dead.............................................................................................................................................................................6–6
Phone does not stay on or is jammed................................................................................................................................6–7
Charging failure.........................................................................................................................................................................6–9
Low battery operation time................................................................................................................................................6–10
Interface troubleshooting..........................................................................................................................................................6–11
FM radio troubleshooting.....................................................................................................................................................6–11
Camera failure..........................................................................................................................................................................6–11
Introduction to camera troubleshooting..................................................................................................................6–11
Taking and evaluating test pictures...........................................................................................................................6–12
Camera troubleshooting.................................................................................................................................................6–12
SIM card failure........................................................................................................................................................................6–12
Flash programming troubleshooting...............................................................................................................................6–13
User interface troubleshooting................................................................................................................................................6–14
Display information: "Contact service"............................................................................................................................6–14
Power key failure....................................................................................................................................................................6–15
UI module keys troubleshooting.......................................................................................................................................6–15
Audio troubleshooting................................................................................................................................................................6–16
Uplink or downlink failure...................................................................................................................................................6–16
Uplink missing audio signal................................................................................................................................................6–17
Uplink weak audio signal.....................................................................................................................................................6–18
Uplink distorted audio signal..............................................................................................................................................6–19
Uplink TDMA noice..................................................................................................................................................................6–20
Downlink missing audio signal..........................................................................................................................................6–21
Downlink weak audio signal...............................................................................................................................................6–22
Downlink distorted audio signal.......................................................................................................................................6–23
Downlink noise in audio signal..........................................................................................................................................6–24
Downlink TDMA noise............................................................................................................................................................6–25
Various noise problems........................................................................................................................................................6–26
BT audio errors........................................................................................................................................................................6–27
Vibra errors...............................................................................................................................................................................6–28
Connections troubleshooting...................................................................................................................................................6–29
Bluetooth troubleshooting..................................................................................................................................................6–29
Baseband tuning...........................................................................................................................................................................6–30
Energy management calibration.......................................................................................................................................6–30
List of Tables
Table 9 Calibration value limits................................................................................................................................................6–31
List of Figures
Figure 77 Phone is dead................................................................................................................................................................6–7
Figure 78 Phone does not stay on or is jammed..................................................................................................................6–8
Figure 79 Charging failure............................................................................................................................................................6–9
Figure 80 Low battery operation time troubleshooting..................................................................................................6–10
Figure 81 FM radio........................................................................................................................................................................6–11
Figure 82 SIM card failure..........................................................................................................................................................6–13
RM-13/33
Baseband Troubleshooting and Tuning Nokia Customer Care
9240218 (Issue 1) Company Confidential Page 6–3
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