Flash Programming Doesn't Work - Nokia RH-3 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.
Flash
faults
page 2
Issue 1 06/2003
Measure BSI pulse
during Flash
programming.
Yes
Is it OK?
Measure FBusRx
(2.78V) signal during
flash programming at
the bottom connector
and Flash pads. Does
waveform match Figure
1?
Change
UEM
Nokia Corporation
Troubleshooting — BB
No
Yes
Confidential
RH-3
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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