Still i don't got UI 3.1I don't got update in my samsung m31 phone.Another disgusting problem im faceing flash light not working in any video calling app.It says can't turn on flashlight because the light is being used by another app.

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I use Samsung galaxy sm-m31 mobile.When i try to wipe data i got error,E:[PDP] lstat /c____/pdp_b__ : 0 - No PDPI reset my phone not problem not solv. Still im useing official custom rom. Please give me a way how to fix this problem.