Flash Programming Does Not Work; Fig 4 Flash Programming Troubleshooting - Nokia RH-53 Troubleshooting Instructions

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Flash programming does not work

The flash programming can only be done via the pads on the PWB (J396).
In case of Flash failure in FLALI station, problem is most likely related to SMD problems. Pos-
sible failures could be short-circuit of balls under µBGAs (UEM, UPP, FLASH). Missing or mis-
aligned components.
In flash programming error cases the flash prommer can give some information about a fault.
The fault information messages could be:
- Phone doesn't set FBUS_TX line low
Because of the use of uBGA components it is not possible to verify if there is a short circuit in
control- and address lines of MCU (UPP) and memory (flash).
10
Figure 4:Flash programming troubleshooting
Flash prgram m ing
do not w ork
Error from prom m er:
"Phone doesn't set
FBUS_TX line low"
Yes
J396, R108
Check connection between
pad 1,2 & 3 on J396
and R108
Yes
J409, J410, J411, J412
Voltage level at 1,8VDC
Yes
Try reading M CU ID
w ith Phoenix.
Reading OK?
Yes
Try reading Flash ID
w ith Phoenix.
Reading OK?
Yes
Reflash phone
COMPANY CONFIDENTIAL
Copyright © 2004 Nokia. All Rights Reserved.
Check :
No
R108, PW B
Check :
No
PW B.
Else defective D200*
Check :
No
PW B.
Else defictive D400*
Check :
No
Replace D450
RH-53/54
ISSUE 1 09/2004