Mmc Troubleshooting; Keyboard Troubleshooting - Nokia RM-42 Service Manual

Nokia Customer Care

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).
Page 6–22 Company Confidential
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BB Troubleshooting and Manual Tuning Guide
RM-42
9241872 (Issue 1)