How to delete retail demo

Cousin -  
 0639220739 -
Hello, I have a Huawei P40 Lite E and P40 Lite, and there are issues preventing my phone's battery from charging to 100%. The ads on the screen keep playing even after I lock the screen. Please help me, sir or madam, so I can use my phone normally.

2 réponses

0639220739
 
Coman, how do we delete Retail Demo?
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