3330 NEWS UPDATE

[MODCHIPS]

AUTO TURN OFFCONFIDENTIAL

Nokia Mobile Phones Engineering Bulletin No. EB-230 / 26.04.01
UK Technical Support Level 4
Effected Product: NHM-5 (3310)


AUTO TURN OFF
Some transceivers are observed to suffer from intermittent 'Auto turn
off'. Symptoms of this can be following:
Phone switches off by itself
Even with 3 or 4 battery bars and after turn on again it is possible to
make a call for a longer period
Typically it fails repeatedly with intervals of anything from minutes to
one or two days
This should not be mixed up with the normal Battery Low turn off
The following component should be changed in phones suffering from that
'Auto turn off' symptom:

ITEMCODEDESCRIPTION
DELR3011620105RES NETWORK 0W06 2X2K2 J 0404
ADDR3011620017RES NETWORK 0W06 2X100R J 0404


Above mentioned change has been done in production since following
HWIDs:

MODULEHWID
UP4IV (0201741)0813
UD4 (0201476)0814
UG4 (0201677)0815


NB: This component change will be classed as a modification and
therefore a £10 labour rate will apply where this modification is
performed.
Above mentioned component change is primary correction. As secondary
correction it can be checked, which Flash IC has been used.
In few cases the 'Auto turn off' symptom can be caused also by old ST
flash i.e. from before week 05/2001, and therefore it is recommended
that only ST flashes from week 05/2001 or later are used. INTEL flashes
can be also used, as those are not seen to cause any that kind of
symptoms.
Instructions how to check the weekcode from ST flash can be found in
APPENDIX I.
APPENDIX I
For 0.25m device the weekcode is in the second line from the bottom.
Format of the weekcode is "YYWW". In picture below that line is "0022",
so it means that the flash is from week 22 in year 2000.


For 0.18m device the weekcode is in the second line from the bottom.
Format of this weekcode is "xxxxxxYYWW", where x is not relevant
information in this case. In picture below the flash is from week 39 in
year 2000.


<FONT COLOR="#ffff00" SIZE="1">[ 15 May 2001 16:59: Message edited 1 time, lastly by MODCHIPS ]</font>