Baseband troubleshooting overview ...................................................................................................................3-5

Power and charging troubleshooting..................................................................................................................3-6

General power checking troubleshooting ......................................................................................................3-6

Battery current measuring fault troubleshooting .........................................................................................3-6

Charging troubleshooting ................................................................................................................................3-8

Clocking troubleshooting .................................................................................................................................3-9

Interface troubleshooting

Camera failure

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Introduction to camera troubleshooting

Taking and evaluating test

Camera hardware

Camera viewfinder troubleshooting

Camera: Bad image quality troubleshooting

COMBO memory troubleshooting

Flash programming fault

FM radio

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

MicroSD card

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

User interface

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

Display module troubleshooting

General instructions for display

Display troubleshooting

Backlight

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

LED driver troubleshooting

Audio

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

Introduction to acoustics troubleshooting

Audio troubleshooting test

Earpiece troubleshooting

Internal earpiece troubleshooting

External headset earpiece troubleshooting

IHF troubleshooting

Microphone troubleshooting

Internal microphone troubleshooting

External headset microphone troubleshooting

Connections

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

Bluetooth troubleshooting

Introduction to Bluetooth troubleshooting

Bluetooth settings for

Bluetooth self tests in Phoenix

Bluetooth BER failure troubleshooting

Bluetooth audio and UI activation troubleshooting

USB interface

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

Baseband manual tuning

Certificate restoring for BB5

Energy management calibration

List of Tables

Table 6 Display module troubleshooting

Table 7 Pixel defects

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Issue 1

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Phoenix................................................................................................................

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COMPANY CONFIDENTIAL

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