Table of Contents
Introduction to BB Troubleshooting ................................................................................................................... 3–5
Baseband self tests in Phoenix ............................................................................................................................ 3–5
Power and charging troubleshooting................................................................................................................. 3–7
Dead or jammed device troubleshooting...................................................................................................... 3–7
General power checking.................................................................................................................................. 3–8
Charging troubleshooting ............................................................................................................................ 3–11
Clocking troubleshooting ............................................................................................................................. 3–13
Power On key troubleshooting.................................................................................................................... 3–17
Interface troubleshooting ................................................................................................................................. 3–19
Flash Programming Troubleshooting ......................................................................................................... 3–19
Memory Troubleshooting............................................................................................................................. 3–21
Memory Card Troubleshooting .................................................................................................................... 3–23
SIM Card Troubleshooting ............................................................................................................................ 3–24
USB Interface Troubleshooting.................................................................................................................... 3–27
User interface troubleshooting......................................................................................................................... 3–29
Backlight and Illumination Troubleshooting ............................................................................................. 3–29
Display Interface Troubleshooting .............................................................................................................. 3–32
Camera troubleshooting.................................................................................................................................... 3–34
Camera HW Troubleshooting ....................................................................................................................... 3–34
Bad Camera Image Quality Troubleshooting ............................................................................................. 3–34
Audio troubleshooting....................................................................................................................................... 3–36
Audio troubleshooting test instructions..................................................................................................... 3–36
Internal microphone troubleshooting........................................................................................................ 3–39
Internal Handsfree (IHF) Speaker Troubleshooting................................................................................... 3–42
External earpiece troubleshooting.............................................................................................................. 3–44
External microphone troubleshooting........................................................................................................ 3–46
Accelerometer Sensor Troubleshooting........................................................................................................... 3–47
Accelerometer Troubleshooting .................................................................................................................. 3–47
Baseband manual tuning guide........................................................................................................................ 3–49
Certificate restoring ...................................................................................................................................... 3–49
Energy management calibration................................................................................................................. 3–50
List of Tables
Table 1 Calibration value limits ........................................................................................................................ 3–51
List of Figures
Figure 9 Troubleshooting Component Location ............................................................................................. 3–16
Figure 10 Probe placement ............................................................................................................................... 3–20
Figure 11 Probe placement diagram................................................................................................................ 3–22
Figure 12 Probe placement diagram................................................................................................................ 3–24
Figure 13 Probe placement diagram................................................................................................................ 3–25
Figure 14 Probe placement diagram................................................................................................................ 3–28
Figure 15 Probe placement diagram................................................................................................................ 3–31
Figure 16 Probe placement diagram................................................................................................................ 3–33
Figure 17 Internal microphone troubleshooting probe placement diagram .............................................. 3–40
Figure 18 IHF troubleshooting probe placement diagram ............................................................................ 3–43
Figure 19 External earpiece troubleshooting probe placement diagram.................................................... 3–44
Figure 20 External microphone troubleshooting placement diagram......................................................... 3–46
RM-497
BB Troubleshooting and Manual Tuning Guide
Issue 1 COMPANY CONFIDENTIAL Page 3 – 3
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