Xiaomi redmi note 9 update android 12 July 8, 2019 16 32 64 128 Xiaomi redmi note 9 android 12 Xiaomi redmi note 9 update Redmi note 9 android 12 miui 13 Redmi note 9 update miui 12.5 Redmi note 9 12.5.6 update Update android 11 redmi 9a