CONFIDENTIAL
12 (18)
Customer Care Europe, Middel East & Africa NHM-8 / RH-9 Repairhints
SCCE Training Group Version 2.0 Approved
2003 Nokia Mobile Phones
Date 10-03-2003
© NMP 2003
Checked by: SCCE
Approved by: Training Group
CHAPTER 4: Phone switches itself off
First of all you should check whether this symptom is not the result of an insufficient charged battery. In case of doubt retest the
phone with a new or well charged battery. If this does not solve the problem, check the following points:
I 010 (battery connector)
- Check mechanical appearance of battery connector, especially check spring contacts if bent, soiled or corroded. Also
ensure that contact pads on the PCB are clean; if necessary remove dirt with help of alcohol but never use any
scratching or rubbing tools!
D200 (UEM)
- In case the phone switches off itself constantly after 32 seconds first you should check whether this symtom is caused
by missing security data: rewrite IMEI and SIMlock data. In case that fault persists, this usually is an internal fault of
UEM D200. As this part is underfilled it is not possible to repair the fault.
N700 (Poweramplifier)
- It has been observed that also the power amplifier can cause the above described fault. Often the phone switches off
itself if you try to tune the upper TX power level as here the current consumption becomes too high. Remember to
realign the power level after reworking the PA!
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