General baseband troubleshooting
Important test points
Introduction
Measuring power suppliers is usually earlier step during troubleshooting. The following picture illustrates
the test points for power suppliers.
Figure 8 Test points for power suppliers
Flash programming does not work
Troubleshooting flow
The flash programming can be done via the pads on the PWB (J2060).
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, UPP, 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:
RM-305; RM-306
Baseband troubleshooting
Issue 2 COMPANY CONFIDENTIAL Page 4 –5
Copyright © 2007 Nokia. All rights reserved.
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