Nokia RM-362 - No Backlight for Display Or;And Keys

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.
Troubleshooting flow
RM-362; RM-363
Baseband Troubleshooting Instructions
Issue 1 COMPANY CONFIDENTIAL Page 3 –19
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