RM-512; RM-513; RM-514; RM-515; RM-543
Baseband Troubleshooting Instructions
Troubleshooting flow
Dead keys
Context
One or more keys has no function.
Troubleshooting flow
No backlight for display or/and keys
Context
There are 3 kinds of statuses: No backlight for both display and keys; No backlight for only display; No
backlight for only keys.
Issue 2
COMPANY CONFIDENTIAL
Page 3 –15
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