Nokia 8310 - Page 8

CONFIDENTIAL 8 (18)
Customer Care Europe & Africa NHM-7 Repairhints
SCCE Training Group Version 1.0 Approved
 2002 Nokia Mobile Phones
Date 28.02.2002
© NMP 2002
Checked by:
SCCE Training Group
Approved by:
SCCE
CHAPTER 3 FLASH UPDATE NOT POSSIBLE
D200
- because of the missing possibility to rewrite phonedata after changing UEM D200 you should not change this part
D400
- if it was necessary to change UPP D400 you have to make SW-update after reworking this part. Otherwise the phone will
not switch on!
D450
- change Flash D450 in case that prommer box messages “wrong manufacor/ devive ID”. Note that after changing D450 you
have to flash the phone, rewrite IMEI, Simlock data and Product code. Furthermore you have to run all RX/TX-tunings and
energy management calibration!
Flash update not possible
check that
signals which are necessary
for a working baseband
(voltages, sleepclock,
referenceclock, PURX)
are ok
check that
FBUS_TXO-line rise
to 2.8VDC after start
flashing
check pulse on
BSI-line (J101) after
start flashing
check components in
BSI-line
check R102. Probably
UEM D200 faulty
continue with section
"Phone does not switch on"
check voltage at
J411 (1.8VDC)
change UPP D400
nOK
OK
nOK
OK
nOK
OK
nOK
If failuremessage from prommer
is "wrong manufactor/ device ID"
update prommerbox or change
Flash D450
OK
nOK
FBUS TX0
FBUS RX0
MBUS