User Guide

Nokia Customer Care 6(a) - Baseband Troubleshooting

Company Confidential RH-51/52, RH-67/68

BB selftest tools

“Selftest failed. Contact service.” on display.

This fault means that the software is able to run and thus the watchdog of UEME can be

served. Selftest functions are executed when the phone is powered on, and if one or

more selftest functions fail, the message “Selftest failed. Contact Service.” is shown on

the display.

The MCU selftest case can be split into two categories: The ones that are executed dur-

ing power up and the ones that are executed only with a PC connected. These tests and

the items included are as follows:

Figure 3: BB selftest items