Nokia RM-721 - Table 6 Power

Table of Contents
Baseband self tests in Phoenix ............................................................................................................................ 3–5
Power and charging troubleshooting................................................................................................................. 3–7
Dead or jammed device troubleshooting...................................................................................................... 3–7
Power key (End key) troubleshooting............................................................................................................ 3–9
General voltage checking troubleshooting ............................................................................................... 3–10
General power checking............................................................................................................................... 3–11
Charging troubleshooting ............................................................................................................................ 3–13
USB charging troubleshooting..................................................................................................................... 3–13
Battery current measuring fault troubleshooting ..................................................................................... 3–15
Interface troubleshooting ................................................................................................................................. 3–16
Flash programming fault troubleshooting................................................................................................. 3–16
SIM card troubleshooting ............................................................................................................................. 3–18
MicroSD card troubleshooting...................................................................................................................... 3–19
USB data interface troubleshooting............................................................................................................ 3–20
User interface troubleshooting......................................................................................................................... 3–22
Keypad troubleshooting............................................................................................................................... 3–22
Numerical keypad illumination troubleshooting ...................................................................................... 3–23
Display module troubleshooting................................................................................................................. 3–24
General instructions for display troubleshooting................................................................................. 3–24
Display module troubleshooting............................................................................................................ 3–26
Bluetooth and FM radio troubleshooting ........................................................................................................ 3–27
Bluetooth troubleshooting .......................................................................................................................... 3–27
FM radio troubleshooting............................................................................................................................. 3–27
Camera module troubleshooting...................................................................................................................... 3–28
Taking and evaluating test pictures with main camera ........................................................................... 3–28
Camera troubleshooting............................................................................................................................... 3–29
Camera hardware troubleshooting............................................................................................................. 3–30
Audio troubleshooting....................................................................................................................................... 3–30
Audio troubleshooting test instructions..................................................................................................... 3–30
Internal earpiece troubleshooting .............................................................................................................. 3–33
Internal microphone troubleshooting........................................................................................................ 3–34
Internal handsfree (IHF) troubleshooting................................................................................................... 3–34
External earpiece troubleshooting.............................................................................................................. 3–35
External microphone troubleshooting........................................................................................................ 3–36
Acoustics troubleshooting............................................................................................................................ 3–38
Introduction to acoustics troubleshooting ........................................................................................... 3–38
Earpiece troubleshooting........................................................................................................................ 3–39
IHF troubleshooting................................................................................................................................. 3–39
Microphone troubleshooting .................................................................................................................. 3–41
Vibra troubleshooting................................................................................................................................... 3–42
Tucson troubleshooting .................................................................................................................................... 3–43
Requirements ................................................................................................................................................ 3–43
Terms in Tucson ............................................................................................................................................ 3–43
Certificate restore BB5 .................................................................................................................................. 3–44
Product code change BB5............................................................................................................................. 3–47
IMEI/ESN rebuild DCT-4 ................................................................................................................................. 3–51
Product code change DCT-4.......................................................................................................................... 3–53
Use of SX-4T smart card in product code change....................................................................................... 3–55
Flash pin for DCT-4 ........................................................................................................................................ 3–56
Troubleshooting............................................................................................................................................ 3–58
RM-721; RM-722
BB Troubleshooting and Manual Tuning Guide
Issue 1 COMPANY CONFIDENTIAL Page 3 – 3
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