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I have a new LG G4 (IMEI: 359872065011230) with Android 6 originally installed. From beginning the phone behaves strangely: it's difficult to wake up with back button or double-tap. Sometimes it displays random artefacts on the display...

Would it help changing Adnroid to another, even older version? Which file shall I try? Regards!

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Model is LG H815

Region is HUN

H81520p_00_0403.kdz  is latest firmware for your phone.

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I just tried to flash the H815 phone and got an Error Code 0x2000, TOT antirollback version is smaller than device version. What to do next, please? From nawrad
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