User Guide

Table of Contents
Baseband troubleshooting overview...................................................................................................................3–5
Power and charging troubleshooting..................................................................................................................3–6
General power checking troubleshooting ......................................................................................................3–6
Battery current measuring fault troubleshooting .........................................................................................3–6
Charging troubleshooting ................................................................................................................................3–8
Clocking troubleshooting .................................................................................................................................3–9
Interface troubleshooting .................................................................................................................................. 3–10
Camera failure ................................................................................................................................................ 3–10
Introduction to camera troubleshooting ............................................................................................... 3–10
Taking and evaluating test pictures........................................................................................................ 3–10
Camera hardware troubleshooting......................................................................................................... 3–11
Camera viewfinder troubleshooting....................................................................................................... 3–12
Camera: Bad image quality troubleshooting ......................................................................................... 3–13
COMBO memory troubleshooting ................................................................................................................. 3–14
Flash programming fault troubleshooting.................................................................................................. 3–15
FM radio troubleshooting.............................................................................................................................. 3–17
MicroSD card troubleshooting....................................................................................................................... 3–18
User interface troubleshooting.......................................................................................................................... 3–20
Display module troubleshooting.................................................................................................................. 3–20
General instructions for display troubleshooting.................................................................................. 3–20
Display troubleshooting ........................................................................................................................... 3–22
Backlight troubleshooting............................................................................................................................. 3–23
LED driver troubleshooting ........................................................................................................................... 3–24
Audio troubleshooting........................................................................................................................................ 3–25
Introduction to acoustics troubleshooting ................................................................................................. 3–25
Audio troubleshooting test instructions...................................................................................................... 3–25
Earpiece troubleshooting.............................................................................................................................. 3–28
Internal earpiece troubleshooting ............................................................................................................... 3–29
External headset earpiece troubleshooting ................................................................................................ 3–30
IHF troubleshooting....................................................................................................................................... 3–31
IHF troubleshooting....................................................................................................................................... 3–32
Microphone troubleshooting ........................................................................................................................ 3–33
Internal microphone troubleshooting......................................................................................................... 3–34
External headset microphone troubleshooting.......................................................................................... 3–35
Connections troubleshooting............................................................................................................................. 3–36
Bluetooth troubleshooting ........................................................................................................................... 3–36
Introduction to Bluetooth troubleshooting ........................................................................................... 3–36
Bluetooth settings for Phoenix................................................................................................................ 3–36
Bluetooth self tests in Phoenix................................................................................................................ 3–37
Bluetooth BER failure troubleshooting................................................................................................... 3–38
Bluetooth audio and UI activation troubleshooting ............................................................................. 3–40
USB interface troubleshooting...................................................................................................................... 3–42
Baseband manual tuning guide......................................................................................................................... 3–43
Certificate restoring for BB5 products.......................................................................................................... 3–43
Energy management calibration.................................................................................................................. 3–48
List of Tables
Table 6 Display module troubleshooting cases................................................................................................ 3–20
Table 7 Pixel defects ........................................................................................................................................... 3–21
RM-272; RM-273
BB Troubleshooting and Manual Tuning Guide
Issue 1 COMPANY CONFIDENTIAL Page 3 –3
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