User Guide

Issue 1 12/04 COMPANY CONFIDENTIAL 57
Copyright © 2004 Nokia. All Rights Reserved.
RAE-6/RA-4
6 - Baseband Description and Troubleshooting Nokia Customer Care
■ Flash troubleshooting
Is the FBUS TX-line
high after startup?
This can be
measured from
module jig
Measure if BSI
(battery connector
middle pin)goes low
after flashing is
started?
Flash
programming
fault
No
No
Yes
Yes
Is the internal FBUS
TX (J2809) set LOW
after PURX has
gone HIGH?
No
Yes
Yes
Is PURX (J2800)
pulsed low?
No
Double check that
you have correct
SW. Does reflashing
succeed?
OKYes
End (retest)
Measure if BSI goes
low after flashing is
started?
Check that flash
adapter's pins are not
damaged and phone is
properly attached to the
adapter. Does reflashing
succeed?
OKYes
No
Does reflashing
even start?
No
Yes
Wrong manufacturer
ID and device ID
Yes
Fault is in non-reworkable
component. Refer to current
BER handling guidance. (StUF
D2800 problem)
No
Try to flash again,
after a couple of
failed attempts go
to MDoc section
Yes
No
Phone fails to flash
Does the pc
recognize phone as
an usb device?
No
No help
No help
No help
Check APE
clocks and
reset section
Go to USB
section
SDRAM part
Fault is in non-reworkable component.
Refer to current BER handling
guidance. (StUF D2800 / UEMEK
D2200 problem).
Go to CMT
troubleshooting
section
Check for
EM troubles
Fault is in non-reworkable
component. Refer to current
BER handling guidance.
(UEMEK D2200 problem)
Fault is in non-reworkable
component. Refer to current
BER handling guidance. (StUF
D2800 problem)