Power and charging troubleshooting..................................................................................................................7-6

Phone is dead....................................................................................................................................................7-6

The phone does not stay on or is jammed.....................................................................................................7-8

Charging failure.................................................................................................................................................7-9

Low battery operation time...........................................................................................................................7-10

Interface troubleshooting...................................................................................................................................7-11

FM radio troubleshooting...............................................................................................................................7-11

Camera failure.................................................................................................................................................7-12

Introduction to camera troubleshooting................................................................................................7-12

Taking and evaluating test pictures.........................................................................................................7-12

Camera troubleshooting..............................................................................................................................7-6

SIM card failure................................................................................................................................................7-13

Flash programming troubleshooting............................................................................................................7-15

User interface troubleshooting...........................................................................................................................7-16

Display troubleshooting...................................................................................................................................7-8

Power key failure..............................................................................................................................................7-9

UI module keys troubleshooting.....................................................................................................................7-9

Audio troubleshooting.........................................................................................................................................7-18

Uplink or downlink failure.............................................................................................................................7-18

Uplink audio troubleshooting........................................................................................................................7-19

Downlink audio troubleshooting..................................................................................................................7-23

Various noise problems..................................................................................................................................7-28

BT audio errors................................................................................................................................................7-29

Vibra errors......................................................................................................................................................7-30

Connections troubleshooting..............................................................................................................................7-31

Bluetooth troubleshooting............................................................................................................................7-31

USB connection failure....................................................................................................................................7-32

IrDA communication failure...........................................................................................................................7-33

Baseband tuning..................................................................................................................................................7-34

Energy management calibration...................................................................................................................7-34

List of Tables

Table 8 Calibration value limits..........................................................................................................................7-35

List of Figures

Figure 88 Troubleshooting diagram: Phone is dead..........................................................................................7-7

Figure 89 Troubleshooting diagram: The phone does not stay on or is jammed...........................................7-8

Figure 90 Troubleshooting diagram: Charging failure.......................................................................................7-9

Figure 91 Troubleshooting diagram: Low battery operation time.................................................................7-10

Figure 92 Troubleshooting diagram: SIM card failure......................................................................................7-14

Figure 93 Troubleshooting: Flash programming..............................................................................................7-15

Figure 94 Troubleshooting: Display.....................................................................................................................7-8

Figure 95 Uplink or downlink failure.................................................................................................................7-18

Figure 96 Various noise problems......................................................................................................................7-28

Figure 97 BT audio errors....................................................................................................................................7-29

Figure 98 Troubleshooting diagram: USB connection failure.........................................................................7-32

Issue 1

Table of Contents

COMPANY CONFIDENTIAL

Nokia Customer Care

Page 7 -3

Table of Contents