Nokia Customer Care
Display controller troubleshooting
Troubleshooting flow
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, corrosion).
Page 6 –32
COMPANY CONFIDENTIAL
Copyright © 2006 Nokia. All rights reserved.
BB Troubleshooting and Manual Tuning Guide
RM-132; RM-133
Issue 1