User Guide

Table of Contents
Baseband troubleshooting....................................................................................................................................6–5
General power checking troubleshooting...........................................................................................................6–7
Clocking troubleshooting......................................................................................................................................6–8
Battery current measuring fault troubleshooting............................................................................................6–10
Flash programming fault troubleshooting........................................................................................................6–11
COMBO memory troubleshooting.......................................................................................................................6–12
Keyboard troubleshooting..................................................................................................................................6–12
USB troubleshooting............................................................................................................................................6–14
Backup battery troubleshooting.........................................................................................................................6–15
Charging troubleshooting...................................................................................................................................6–16
Dead or jammed troubleshooting......................................................................................................................6–17
MR sensor troubleshooting.................................................................................................................................6–18
Vibra troubleshooting..........................................................................................................................................6–19
MicroSD troubleshooting.....................................................................................................................................6–20
SIM troubleshooting.............................................................................................................................................6–21
Display module troubleshooting........................................................................................................................6–22
General instructions for display troubleshooting........................................................................................6–22
Display fault troubleshooting (main and second displays)........................................................................6–24
Displays and keyboard backlight troubleshooting......................................................................................6–25
LED driver troubleshooting............................................................................................................................6–27
Camera troubleshooting......................................................................................................................................6–28
Introduction to camera troubleshooting.....................................................................................................6–28
Taking and evaluating test pictures..............................................................................................................6–28
Camera hardware failure message troubleshooting...................................................................................6–29
Camera hardware troubleshooting...............................................................................................................6–30
Front camera viewfinder troubleshooting...................................................................................................6–31
Front camera bad image quality troubleshooting......................................................................................6–32
Bluetooth troubleshooting..................................................................................................................................6–33
Introduction to Bluetooth/FM Radio troubleshooting................................................................................6–33
Bluetooth settings for Phoenix......................................................................................................................6–34
Bluetooth self tests in Phoenix......................................................................................................................6–35
Bluetooth BER failure troubleshooting.........................................................................................................6–37
BT audio failure troubleshooting..................................................................................................................6–39
FM Radio troubleshooting..............................................................................................................................6–40
Audio troubleshooting.........................................................................................................................................6–41
Audio troubleshooting test instructions......................................................................................................6–41
Internal earpiece troubleshooting................................................................................................................6–44
Internal microphone troubleshooting..........................................................................................................6–45
IHF speaker troubleshooting..........................................................................................................................6–46
External microphone troubleshooting..........................................................................................................6–47
External earpiece troubleshooting................................................................................................................6–48
Introduction to acoustics troubleshooting..................................................................................................6–49
Earpiece troubleshooting...............................................................................................................................6–50
IHF troubleshooting........................................................................................................................................6–51
Microphone troubleshooting.........................................................................................................................6–52
Baseband manual tuning guide.........................................................................................................................6–53
Energy management calibration...................................................................................................................6–53
List of Tables
RM-198
BB Troubleshooting and Manual Tuning Guide Nokia Customer Care
Issue 1 COMPANY CONFIDENTIAL Page 6 –3
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