Phone Does Not Start Up Normally Or Does Not Stay On - Nokia NPM-2NX Troubleshooting Manual

NPM-2NX
Troubleshooting

Phone does not start up normally or does not stay on

Note! In case of power up faults, it's not possible to force phone on by disabling watch-
dog. Instead, measurements should be done immediately when power key pressed or
when battery voltage connected to phone (local/test mode).
The easist way to check if software is running when phone takes abnormal amount of
current is to measure cbusclk and Vcore.
Dbus clock (programmable 9.72MHz TDMA, 13MHz GSM) is not automatically visible on
test and local mode.
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