Table of Contents
Troubleshooting overview ....................................................................................................................................3–5
Dead or jammed device troubleshooting............................................................................................................3–6
General power checking ........................................................................................................................................3–7
Clocking troubleshooting ......................................................................................................................................3–8
Charging troubleshooting .....................................................................................................................................3–9
Backup battery troubleshooting........................................................................................................................ 3–10
Flash programming fault troubleshooting....................................................................................................... 3–11
Combo memory troubleshooting ...................................................................................................................... 3–13
MicroSD card troubleshooting............................................................................................................................ 3–14
EMMC troubleshooting ........................................................................................................................................ 3–16
USB interface troubleshooting........................................................................................................................... 3–18
SIM card troubleshooting ................................................................................................................................... 3–20
Hall sensor troubleshooting............................................................................................................................... 3–22
WLAN interface troubleshooting ....................................................................................................................... 3–23
Keyboard troubleshooting ................................................................................................................................. 3–24
NaviWheel troubleshooting ............................................................................................................................... 3–26
Power key troubleshooting................................................................................................................................ 3–27
Vibra troubleshooting......................................................................................................................................... 3–28
Display module troubleshooting ....................................................................................................................... 3–29
General instructions for display troubleshooting....................................................................................... 3–29
Display troubleshooting ................................................................................................................................ 3–30
LED driver troubleshooting ........................................................................................................................... 3–31
Power LED troubleshooting .......................................................................................................................... 3–35
Bluetooth and FM radio ...................................................................................................................................... 3–37
Introduction to Bluetooth/FM Radio troubleshooting ............................................................................... 3–37
Bluetooth settings for Phoenix..................................................................................................................... 3–37
Bluetooth self tests in Phoenix..................................................................................................................... 3–38
Bluetooth troubleshooting ........................................................................................................................... 3–40
FM radio troubleshooting.............................................................................................................................. 3–41
Audio troubleshooting........................................................................................................................................ 3–41
Audio troubleshooting test instructions...................................................................................................... 3–41
Internal earpiece troubleshooting ............................................................................................................... 3–45
Internal microphone troubleshooting......................................................................................................... 3–46
IHF speakers troubleshooting....................................................................................................................... 3–47
External microphone troubleshooting......................................................................................................... 3–48
External earpiece troubleshooting............................................................................................................... 3–49
Acoustics troubleshooting............................................................................................................................. 3–50
Introduction to acoustics troubleshooting ............................................................................................ 3–50
Earpiece troubleshooting......................................................................................................................... 3–51
IHF troubleshooting.................................................................................................................................. 3–52
Microphone troubleshooting ................................................................................................................... 3–53
Baseband manual tuning guide......................................................................................................................... 3–54
Certificate restoring for BB5 products.......................................................................................................... 3–54
Energy management calibration.................................................................................................................. 3–60
List of Tables
Table 2 Display module troubleshooting cases................................................................................................ 3–29
Table 3 Pixel defects ........................................................................................................................................... 3–29
Table 4 Calibration value limits ......................................................................................................................... 3–60
RM-179; RM-223
Baseband Troubleshooting
Issue 1 COMPANY CONFIDENTIAL Page 3 –3
Copyright © 2007 Nokia. All rights reserved.
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