CONFIDENTIAL 11 (30)
NSE-5
Service & Analysis Center Europe Repairhints Version 1.0 Approved
SACE AMS Training Group 30.07.2000
Repairhints_nse5_002508 Checked by:
AMS TRAINING GROUP
Approved by:
SACE
FLASH UPDATE NOT POSSIBLE
Phone doesn`t switch
on: Flash update not
possible
Check if fault code from
prommer is one of the
following: MCU boot failure,
serial data line failure, serial
clock line failure
External RAM fault
Resolder RAM or
change if necessary. Try
to update again
Phone is OK
Change Flash D303, try
to update again
Change Flash D301, try
to update again
Phone is OK
Change SDRAM or
swap, probably MAD or
PCB defect
Connect "watchdog disable"
R413, -see layout- to GND
Continue with section
CCONT
Check VBB 2,8VDC at
C139, Vxo 2,8VDC at
C112
Check PURX at R147,
2,8VDC
Check 32,768kHz squarewave
signal at C150 approximately
600mV. If not OK, check
periphery of B100, Change
B100 or N100 if necessary
Continue next page
YES NO
YES
No message
No message
Any message
Any message
Any message
It`s now necessary to
make full factory set,
rewrite IMEI phone data,
update once again
notOK
OK
OK
notOK
NOTE : If COBBA or D301 has been changed, SIMLOCK & IMEI
data have to be rewritten. Also realign RX/TX values,
especially TX I/Q !
Next step only if it is permitted
to you to rewrite IMEI,
otherwise send phone to SACE
Algorithm code
fail, alias ID
missing
Update FPS4 BOX
with the latest
flash device file
No
Yes
notOK
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