User Guide

Table of Contents
Troubleshooting overview ....................................................................................................................................4–5
Dead or jammed device troubleshooting............................................................................................................4–6
General power checking ........................................................................................................................................4–7
Clocking troubleshooting ......................................................................................................................................4–8
Charging troubleshooting .....................................................................................................................................4–9
Backup battery troubleshooting........................................................................................................................ 4–10
Flash programming fault troubleshooting....................................................................................................... 4–11
Combo memory troubleshooting ...................................................................................................................... 4–13
MicroSD card troubleshooting............................................................................................................................ 4–14
USB interface troubleshooting........................................................................................................................... 4–16
SIM card troubleshooting ................................................................................................................................... 4–18
MR sensor troubleshooting ................................................................................................................................ 4–20
Keyboard troubleshooting ................................................................................................................................. 4–21
Power key troubleshooting................................................................................................................................ 4–23
Vibra troubleshooting......................................................................................................................................... 4–24
Display module troubleshooting ....................................................................................................................... 4–25
General instructions for display troubleshooting....................................................................................... 4–25
Display troubleshooting ................................................................................................................................ 4–26
Backlights troubleshooting........................................................................................................................... 4–27
EL foil backlight troubleshooting ................................................................................................................. 4–29
LED driver troubleshooting ........................................................................................................................... 4–30
Power LED troubleshooting .......................................................................................................................... 4–32
Bluetooth and FM radio ...................................................................................................................................... 4–34
Introduction to Bluetooth/FM Radio troubleshooting ............................................................................... 4–34
Bluetooth settings for Phoenix..................................................................................................................... 4–35
Bluetooth self tests in Phoenix..................................................................................................................... 4–36
Bluetooth troubleshooting ........................................................................................................................... 4–38
FM radio troubleshooting.............................................................................................................................. 4–38
Audio troubleshooting........................................................................................................................................ 4–40
Audio troubleshooting test instructions...................................................................................................... 4–40
Internal earpiece troubleshooting ............................................................................................................... 4–44
Internal microphone troubleshooting......................................................................................................... 4–45
IHF speakers troubleshooting....................................................................................................................... 4–46
External headset microphone troubleshooting.......................................................................................... 4–47
External headset earpiece troubleshooting ................................................................................................ 4–48
Acoustics troubleshooting............................................................................................................................. 4–49
Introduction to acoustics troubleshooting ............................................................................................ 4–49
Earpiece troubleshooting......................................................................................................................... 4–50
IHF troubleshooting.................................................................................................................................. 4–51
Microphone troubleshooting ................................................................................................................... 4–52
Baseband manual tuning guide......................................................................................................................... 4–53
Certificate restoring for BB5 products.......................................................................................................... 4–53
Energy management calibration.................................................................................................................. 4–58
List of Tables
Table 3 Display module troubleshooting cases................................................................................................ 4–25
Table 4 Pixel defects ........................................................................................................................................... 4–25
Table 5 Calibration value limits ......................................................................................................................... 4–58
RM-135
BB Troubleshooting and Manual Tuning Guide Nokia Customer Care
Issue 1 COMPANY CONFIDENTIAL Page 4 –3
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