Nokia RH-64 Service Manual page 113

RH-64
Baseband troubleshooting Nokia Customer Care
In case of Flash failure in FLALI station, swap the phone and send it back to the care program for further analysis.
Possible failures could be short-circuit of balls under µBGAs (UEMCLite, UPP4M, FLASH). 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 circuit in control- and address
lines of MCU (UPP4M) and memory (flash).
Figure 81 Flash programming fault
9243363 (Issue 1) Company Confidential Page 6–7
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