Baseband troubleshooting overview
This section is intended to be a guide for localising and repairing electrical faults.
The table below tells you what troubleshooting to go to.
Problem Troubleshooting
Phone does not stay on or is jammed 1 Dead or jammed phone
2 Power key
Abnormal current consumption 1 General power checking
2 Battery current measuring fault
Flashing does not work or the problem is not clearly
defined
1 Flashing
2 Clocking
3 Combo memory
Charging does not work 1 Charging
Display does not work 1 Display fault
Keypad does not work 1 Keypad
Backlights do not work 1 Display and keyboard backlight
2 LED driver
Phone does not read SIM card 1 SIM
USB does not work 1 USB
Audio (mic, earpiece, IHF) does not work 1 Audio
2 Acoustics
Camera does not work 1 Camera hardware failure message
2 Camera baseband hardware
3 Camera viewfinder
4 Bad image quality
Swivel detection 1 Swivel detection troubleshooting
Camera flash LED does not work 1 Flash LED
Bluetooth does not work 1 Bluetooth (BT)
FM radio does not work 1 FM radio
RM-70
BB Troubleshooting and Manual Tuning Guide Nokia Customer Care
Issue 1 COMPANY CONFIDENTIAL Page 6 –5
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