User Guide

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 2 Flash programming fault

RH-70

Baseband troubleshooting Nokia Customer Care

9243364 (Issue 1, Part 2) Company Confidential Page 1–7