User Interface Troubleshooting; Keypad Troubleshooting - Nokia 301 Service Manual

RM-839; RM-840; RM-841
BB Troubleshooting and Manual Tuning Guide
Troubleshooting flow

User interface troubleshooting

Keypad troubleshooting

Context
If one or more keys are stuck, so that the key does not react when a key dome is pressed, the failure is caused
by mechanical reasons (dirt, rust, mechanical damage, etc.)
If the failure mode is not clear, start with the Keyboard test in Nokia Care Suite PST.
Issue 1 NOKIA INTERNAL USE ONLY Page 3 – 25
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