User Guide

MMC troubleshooting

Keyboard troubleshooting

Context

There are two possible failure modes in the keyboard module:

• One or more keys can be stuck, so that the key does not react when a keydome is pressed. This kind of failure

is caused by mechanical reasons (dirt, rust).

RM-42

Nokia Customer Care BB Troubleshooting and Manual Tuning Guide

Page 6–22 Company Confidential 9241872 (Issue 1)