For many buyers, one of the main disappointments in the Xiaomi Mi A1, the first product of the Chinese company as part of the Android One program, has been slow charging. To fully fill the battery, you need more than two hours. With the upgrade to Android Oreo, the situation will improve, because Xiaomi will add support for fast charging to the firmware. Now you can charge the smartphone from zero to hundreds in 92 minutes, that is, about an hour and a half.