Screen bautometic blank and setting not stable after restart

Why is this divice scene blank automatically.

Screen bautometic blank and setting not stable after restart

Shiv Prakash Shiv Prakash
 /  edited October 31
Why is this divice scene blank automatically. And second problem is if device restaurant it's not hold the previous settings and all basic settings on outometicaly please short out these problems by software update.
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