User Guide

Table of Contents
Baseband self tests in Phoenix .............................................................................................................................3–5
Power and charging troubleshooting..................................................................................................................3–7
Dead or jammed device troubleshooting.......................................................................................................3–7
General power checking...................................................................................................................................3–9
Charging troubleshooting ................................................................................................................................3–9
Interface troubleshooting .................................................................................................................................. 3–11
Flash programming fault troubleshooting.................................................................................................. 3–11
Combo memory troubleshooting ................................................................................................................. 3–14
USB interface troubleshooting...................................................................................................................... 3–14
SIM card troubleshooting .............................................................................................................................. 3–15
User interface troubleshooting.......................................................................................................................... 3–17
Keypad troubleshooting................................................................................................................................ 3–17
Display module troubleshooting.................................................................................................................. 3–17
General instructions for display troubleshooting.................................................................................. 3–17
Display troubleshooting ........................................................................................................................... 3–18
Keyboard backlight troubleshooting ...................................................................................................... 3–20
Camera troubleshooting..................................................................................................................................... 3–21
Camera troubleshooting................................................................................................................................ 3–21
Camera hardware troubleshooting.............................................................................................................. 3–21
Audio troubleshooting........................................................................................................................................ 3–23
Audio troubleshooting test instructions...................................................................................................... 3–23
Internal earpiece troubleshooting ............................................................................................................... 3–27
Internal microphone troubleshooting......................................................................................................... 3–28
Internal handsfree (IHF) troubleshooting.................................................................................................... 3–29
External earpiece troubleshooting............................................................................................................... 3–30
External microphone troubleshooting......................................................................................................... 3–31
Vibra troubleshooting.................................................................................................................................... 3–32
Baseband manual tuning guide......................................................................................................................... 3–32
Certificate restoring for BB5 products.......................................................................................................... 3–32
Energy management calibration.................................................................................................................. 3–37
List of Tables
Table 4 Display module troubleshooting cases................................................................................................ 3–17
Table 5 Pixel defects ........................................................................................................................................... 3–18
Table 6 Calibration value limits ......................................................................................................................... 3–37
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.................................. 3–13
Figure 10 Single-ended output waveform of the Ext_in_HP_out measurement when earpiece is
connected. ................................................................................................................................................. 3–25
Figure 11 Differential output waveform of the Ext_in_IHF_out out loop measurement when speaker is
connected. ................................................................................................................................................. 3–25
Figure 12 Single-ended output waveform of the HP_in_Ext_out loop when microphone is connected....
3–26
RM-378; RM-379
BB Troubleshooting and Manual Tuning Guide
Issue 1 COMPANY CONFIDENTIAL Page 3 –3
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