troubleshooting.......................................................................................................................................

Audio troubleshooting test

Internal earpiece troubleshooting

Internal handsfree (IHF)

Internal microphone troubleshooting

External earpiece

troubleshooting..............................................................................................................

External microphone

Vibrator troubleshooting

Baseband manual tuning

Energy management calibration

PIT function instruction

PIT function

overview..............................................................................................................................

Certificate

restore.....................................................................................................................................

Product code change

List of Tables

Table 1 Display module troubleshooting

Table 2 Pixel defects

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Table 3 All test items for

List of Figures

Figure 8 Test pads

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Figure 9 Camera interface signals (Blue is clk red data)

Figure 10 Camera interface IC troubleshooting guide

Issue 1

Table of Contents

Suite....................................................................................................................

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troubleshooting..........................................................................................................

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troubleshooting.........................................................................................................

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troubleshooting.................................................................................

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instructions.....................................................................................................

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troubleshooting...................................................................................................

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troubleshooting........................................................................................................

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guide........................................................................................................................

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cases...............................................................................................

audio.........................................................................................................................

NOKIA INTERNAL USE ONLY

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3-5

3-7

3-9

3-10

3-12

3-13

3-15

3-17

3-18

3-19

3-22

3-24

3-25

3-26

3-28

3-29

3-31

3-33

3-34

3-35

3-36

3-38

3-39

3-42

3-43

3-45

3-28

3-32

3-6

3-30

3-31

Page 3 - 3

Table of Contents

Chapters

Table of Contents

Troubleshooting

This manual is also suitable for:

301 dual sim Rm-839 Rm-840 Rm-841

Nokia 301 Service Manual page 43

Chapters

Troubleshooting

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Table of Contents