User Guide

Table of Contents
Baseband troubleshooting....................................................................................................................................6–5
Dead or jammed device troubleshooting............................................................................................................6–7
General power checking troubleshooting...........................................................................................................6–8
CMT and application processor clocking troubleshooting.................................................................................6–9
Charging troubleshooting...................................................................................................................................6–11
Battery current measuring fault troubleshooting............................................................................................6–12
Flash programming fault troubleshooting........................................................................................................6–13
CMT SDRAM memory troubleshooting................................................................................................................6–15
CMT NOR flash fault troubleshooting..................................................................................................................6–16
Application processor memory troubleshooting..............................................................................................6–17
Application processor troubleshooting.............................................................................................................6–18
Power key troubleshooting.................................................................................................................................6–19
USB interface troubleshooting............................................................................................................................6–20
SIM card troubleshooting....................................................................................................................................6–21
SD card troubleshooting......................................................................................................................................6–22
Keyboard troubleshooting..................................................................................................................................6–24
Flip keyboard troubleshooting...........................................................................................................................6–25
Engine keyboard troubleshooting......................................................................................................................6–26
Display module troubleshooting........................................................................................................................6–27
General instructions for display troubleshooting........................................................................................6–27
Display fault troubleshooting........................................................................................................................6–29
Display and keyboard backlight troubleshooting........................................................................................6–30
ALS troubleshooting........................................................................................................................................6–31
LED driver troubleshooting............................................................................................................................6–32
WLAN troubleshooting........................................................................................................................................6–33
Introduction to WLAN troubleshooting........................................................................................................6–33
WLAN functionality testing using SB-7 and Phoenix...................................................................................6–33
WLAN failure troubleshooting.......................................................................................................................6–35
WLAN FEM troubleshooting............................................................................................................................6–36
WLAN BT/TCXO troubleshooting....................................................................................................................6–37
Bluetooth troubleshooting..................................................................................................................................6–38
Introduction to Bluetooth troubleshooting.................................................................................................6–38
Bluetooth settings for Phoenix......................................................................................................................6–39
Bluetooth self tests in Phoenix......................................................................................................................6–40
Bluetooth BER failure troubleshooting.........................................................................................................6–42
BT audio failure troubleshooting..................................................................................................................6–44
Audio troubleshooting.........................................................................................................................................6–45
Audio troubleshooting test instructions......................................................................................................6–45
Earpiece troubleshooting...............................................................................................................................6–49
Microphone troubleshooting.........................................................................................................................6–50
IHF troubleshooting........................................................................................................................................6–51
External microphone troubleshooting..........................................................................................................6–52
External earpiece troubleshooting................................................................................................................6–53
VIBRA troubleshooting...................................................................................................................................6–54
Baseband manual tuning guide.........................................................................................................................6–55
Energy management calibration...................................................................................................................6–55
List of Tables
Table 5 Display module troubleshooting cases................................................................................................6–27
RM-10;RM-24
BB Troubleshooting and Manual Tuning Guide Nokia Customer Care
Issue 1 COMPANY CONFIDENTIAL Page 6 –3
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