Flash Programming Does Not Work - Nokia NPM-10 Series Troubleshooting Instructions

NPM-10
Troubleshooting Instructions

Flash programming does not work

The flash programming can only be done via the pads on the PWB (J100).
In case of flash failure in FLALI station, the problem is most likely related to SMD prob-
lems. Possible failures could be short-circuit of balls under µBGAs (UEM, UPP, FLASH), or
missing or misaligned 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 cir-
cuit in control- and address lines of MCU (UPP) and memory (flash).
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Nokia Corporation
CCS Technical Documentation
Confidential Issue 1 03/2003