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Basic use
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Specifications
Cause 1 of 12: Your phone is overloaded for unknown reasons
If your phone is overloaded, you won't be able to make any calls. It may help restarting it.
Solution: Restart your phone.
Restart your phone
Simultaneously, press the Side key and the lower part of the Volume key and keep them both pressed until your phone restarts.
Or select...
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