Flash Programming Fault - Nokia RH-30 Series Troubleshooting Instructions

Flash Programming Fault

ICQ: 343183001 QQ: 35070846 Email: Serviceic@yahoo.com.cn
Start
Is the FBUS
TX-line HIGH
after startup?
Yes
Is FBUSTX-line
set to LOW after
it has been
HIGH?
Yes
Wrong
manufactor ID
and device ID
No
Is phone totally
dead?
No
Phone doesn't
start up or it's
jammed?
No
End (retest)
Figure 4: Flash programming troubleshooting
Measure BSI-pulse
No
during Flash
operation. Is it OK?
Yes
Measure FBUSTX-line
during Flash operation
(J411). Is it ~1.8V?.
No
Yes
Yes
Yes
Check BSI-line including
No
No
Change UEM
Yes
X100,C100,C240,R202
and R206.
R310 and R206
Check R104.
If OK, change UEM
Change UPP
Change Flash
Phone is dead
Phone is
jammed