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
COMBO memory troubleshooting ................................................................................................................. 3–10
Flash programming fault troubleshooting.................................................................................................. 3–11
MicroSD card troubleshooting....................................................................................................................... 3–12
User interface troubleshooting.......................................................................................................................... 3–15
Display module troubleshooting.................................................................................................................. 3–15
General instructions for display troubleshooting.................................................................................. 3–15
Display troubleshooting ........................................................................................................................... 3–17
Backlight troubleshooting............................................................................................................................. 3–18
LED driver troubleshooting ........................................................................................................................... 3–19
IrDA troubleshooting ..................................................................................................................................... 3–20
Audio troubleshooting........................................................................................................................................ 3–21
Introduction to acoustics troubleshooting ................................................................................................. 3–21
Audio troubleshooting test instructions...................................................................................................... 3–21
Earpiece troubleshooting.............................................................................................................................. 3–24
Internal earpiece troubleshooting ............................................................................................................... 3–25
External headset earpiece troubleshooting ................................................................................................ 3–26
IHF troubleshooting....................................................................................................................................... 3–27
IHF troubleshooting....................................................................................................................................... 3–28
Microphone troubleshooting ........................................................................................................................ 3–29
Internal microphone troubleshooting......................................................................................................... 3–30
External headset microphone troubleshooting.......................................................................................... 3–31
Connections troubleshooting............................................................................................................................. 3–32
Bluetooth troubleshooting ........................................................................................................................... 3–32
Introduction to Bluetooth troubleshooting ........................................................................................... 3–32
Bluetooth settings for Phoenix................................................................................................................ 3–32
Bluetooth self tests in Phoenix................................................................................................................ 3–33
Bluetooth BER failure troubleshooting................................................................................................... 3–34
Bluetooth audio and UI activation troubleshooting ............................................................................. 3–36
USB interface troubleshooting...................................................................................................................... 3–38
Baseband manual tuning guide......................................................................................................................... 3–39
Certificate restoring for BB5 products.......................................................................................................... 3–39
Energy management calibration.................................................................................................................. 3–44
List of Tables
Table 6 Display module troubleshooting cases................................................................................................ 3–15
Table 7 Pixel defects ........................................................................................................................................... 3–16
Table 8 Calibration value limits ......................................................................................................................... 3–44
List of Figures
Figure 8 Flashing pic 1. Take single trig measurement for the rise of the BSI signal.................................. 3–12
Figure 9 Flashing pic 2. Take single trig measurement for the rise of the BSI signal.................................. 3–12
RM-274
BB Troubleshooting and Manual Tuning Guide
Issue 1 COMPANY CONFIDENTIAL Page 3 –3
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