Table of Contents
Baseband troubleshooting....................................................................................................................................6–5
Dead or jammed device troubleshooting............................................................................................................6–8
General power checking troubleshooting - CMT...............................................................................................6–10
General power checking troubleshooting - application processor.................................................................6–11
CMT clocking troubleshooting.............................................................................................................................6–12
Application processor troubleshooting.............................................................................................................6–13
Charging troubleshooting...................................................................................................................................6–14
Battery current measuring fault troubleshooting............................................................................................6–15
Flash programming fault troubleshooting........................................................................................................6–16
CMT SDRAM memory troubleshooting................................................................................................................6–19
CMT NOR flash fault troubleshooting..................................................................................................................6–20
Application processor memory troubleshooting..............................................................................................6–21
Power key troubleshooting.................................................................................................................................6–22
USB interface troubleshooting............................................................................................................................6–23
SIM card troubleshooting....................................................................................................................................6–25
SD card troubleshooting......................................................................................................................................6–27
IrDA troubleshooting...........................................................................................................................................6–29
Display controller troubleshooting....................................................................................................................6–31
WLAN interface troubleshooting........................................................................................................................6–32
Keyboard troubleshooting..................................................................................................................................6–33
Slider switch troubleshooting.............................................................................................................................6–35
FM radio troubleshooting....................................................................................................................................6–36
Certificate restoring for BB5.0 products............................................................................................................6–38
Display module troubleshooting........................................................................................................................6–44
General instructions for display troubleshooting........................................................................................6–44
Display fault troubleshooting........................................................................................................................6–46
Display and keyboard backlight troubleshooting........................................................................................6–47
ALS troubleshooting........................................................................................................................................6–47
LED driver troubleshooting............................................................................................................................6–50
Bluetooth troubleshooting..................................................................................................................................6–51
Introduction to Bluetooth troubleshooting.................................................................................................6–51
Bluetooth settings for Phoenix......................................................................................................................6–52
Bluetooth self tests in Phoenix......................................................................................................................6–53
Bluetooth BER failure troubleshooting.........................................................................................................6–55
BT audio failure troubleshooting..................................................................................................................6–57
Audio troubleshooting.........................................................................................................................................6–58
Audio troubleshooting test instructions......................................................................................................6–58
Internal earpiece troubleshooting................................................................................................................6–62
Internal microphone troubleshooting..........................................................................................................6–63
IHF troubleshooting........................................................................................................................................6–64
External microphone troubleshooting..........................................................................................................6–65
External earpiece troubleshooting................................................................................................................6–66
Vibra troubleshooting....................................................................................................................................6–67
Baseband manual tuning guide.........................................................................................................................6–68
Energy management calibration...................................................................................................................6–68
List of Tables
Table 8 Display module troubleshooting cases................................................................................................6–44
Table 9 Pixel defects............................................................................................................................................6–45
RM-91; RM-92
BB Troubleshooting and Manual Tuning Guide Nokia Customer Care
Issue 1 COMPANY CONFIDENTIAL Page 6 –3
Copyright © 2006 Nokia. All rights reserved.
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