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...................................................................................................................................3–8
Charging troubleshooting ................................................................................................................................3–8
Interface troubleshooting .................................................................................................................................. 3–10
Flash programming fault troubleshooting.................................................................................................. 3–10
Combo memory troubleshooting ................................................................................................................. 3–13
USB interface troubleshooting...................................................................................................................... 3–13
SIM card troubleshooting .............................................................................................................................. 3–14
User interface troubleshooting.......................................................................................................................... 3–16
Keypad troubleshooting................................................................................................................................ 3–16
Display module troubleshooting.................................................................................................................. 3–18
General instructions for display troubleshooting.................................................................................. 3–18
Display troubleshooting ........................................................................................................................... 3–19
Keyboard backlight troubleshooting ...................................................................................................... 3–20
Camera troubleshooting..................................................................................................................................... 3–22
Camera troubleshooting................................................................................................................................ 3–22
Camera hardware troubleshooting.............................................................................................................. 3–23
Audio troubleshooting........................................................................................................................................ 3–25
Audio troubleshooting test instructions...................................................................................................... 3–25
Internal earpiece troubleshooting ............................................................................................................... 3–29
Internal microphone troubleshooting......................................................................................................... 3–30
Internal handsfree (IHF) troubleshooting.................................................................................................... 3–31
External earpiece troubleshooting............................................................................................................... 3–32
External microphone troubleshooting......................................................................................................... 3–33
Vibra troubleshooting.................................................................................................................................... 3–34
Baseband manual tuning guide......................................................................................................................... 3–34
Certificate restoring for BB5 products.......................................................................................................... 3–34
Energy management calibration.................................................................................................................. 3–39
List of Tables
Table 4 Display module troubleshooting cases................................................................................................ 3–18
Table 5 Pixel defects ........................................................................................................................................... 3–18
Table 6 Calibration value limits ......................................................................................................................... 3–39
List of Figures
Figure 8 Flashing pic 1. Take single trig measurement for the rise of the BSI signal.................................. 3–11
Figure 9 Flashing pic 2. Take single trig measurement for the rise of the BSI signal.................................. 3–12
Figure 10 Single-ended output waveform of the Ext_in_HP_out measurement when earpiece is
connected. ................................................................................................................................................. 3–27
Figure 11 Differential output waveform of the Ext_in_IHF_out out loop measurement when speaker is
connected. ................................................................................................................................................. 3–27
Figure 12 Single-ended output waveform of the HP_in_Ext_out loop when microphone is connected....
3–28
RM-436
BB Troubleshooting and Manual Tuning Guide
Issue 1 COMPANY CONFIDENTIAL Page 3 –3
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