Redmi note 4 downgrade miui 11 to miui 10 July 8, 2019 16 32 64 128 Redmi 4 downgrade miui 11 to miui 8 Redmi note 11 downgrade miui Redmi note 9 downgrade miui 11 Redmi note 9 miui downgrade Redmi note 10 miui 13 downgrade