No Backlight For Display Or/And Keys - Nokia 2760 Service Manual

RM-258; RM-259
Baseband Troubleshooting Instructions
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
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