User Guide

Issue 1 12/04 COMPANY CONFIDENTIAL 47
Copyright © 2004 Nokia. All Rights Reserved.
RAE-6/RA-4
6 - Baseband Description and Troubleshooting Nokia Customer Care
CBA keys troubleshooting
Cover keys/
CBA keys are
not working
They seem to
be
mechanically
ok?
Yes
Is
connector
X4402
ok?
Yes
Keys work
with another
UI module?
No
Replace
flex
Yes
OMAP FAULT?
Fault is in non-
reworkable
component. Refer
to current BER
handling guidance.
Change
Z4400
and
Z4401
See that
R4424, 4425,
R4427 are ok.
Still dead
No change