Flash Programming Doesn't Work - Nokia NPD-1 Series Troubleshooting - Bb

CCS Technical Documentation

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
Issue 1 11/2002
Yes
Measure BSI pulse
during Flash
programming.
Is it OK?
Yes
Measure FBusRx
FBusTX and MBUS
during flash
programming at the
bottom connector and
Flash pads . Does
waveform
match Figure 1
Change
UEM
Yes
Nokia Corporation
Troubleshooting — BB
No
No
Yes
Confidential
NPD-1
Check BSI line
X110, C230,
R203, R202
Check R100,
R101, R104,
C104, C105, and
V101.if OK, then
Change UEM or
UPP
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