Flash Programming Doesn't Work - Nokia NHM-7 series Service Manual

NHM–7
Troubleshooting Instructions

Flash programming doesn't work

Flash
faults
The Phone does
not set Flashbus TXD line
high after the startup.
No
The Phone does not set
Flashbus TXD line low after
the line has been high.
No
Flash faults
page 2
Page 8
Measure BSI pulse
Yes
during Flash
programming.
Is it OK ?
Yes
Measure FBUSTX
line during Flash
programming
from testpoint J411
Is it High (1.8V) ?
Yes
Yes
E Nokia Corporation
PAMS Technical Documentation
Check BSI line
No
X101, C241,
R203, C109,
R202
Check R102
No
If OK –>
Change UEM
Change UPP
Change UPP
Issue 1 10/2001