Nokia 6620 서비스 매뉴얼
NHL-12
Nokia Customer Care
6- Baseband
58
COMPANY CONFIDENTIAL
Issue 3 05/2005
Copyright © 2005 Nokia. All Rights Reserved.
CMT flash faults
Check BSI-line including
X2020,C2225,C2020,R20
35,R2202 and R2201.
Is the FBUS TX-line
high after startup ?
CMT Flash
programming
fault
IS FBUSTX-line set
to LOW after it has
been HIGH?
Wrong
manufacturer ID
and device ID?
Phone doesn’t
start up or it’s
jammed
Change UEM (D2200).
Retest.
Change UPP
(D2800).Retest.
Change flash
(D3000). Retest
END
Measure BSI
pulse (J2021)
during flash
programming. Is it
ok ?
NO
NO
NO
NO
YES
YES
Measure FBUSTX-
line (J2809) during
flash programming.
Is it ~1.8V ?
NO
NO
YES
YES
Dead or jammed
phone