Follow the below Guide to install the firmware using the Mi Flash Tool. Xiaomi Redmi 6 Run on android 8.1 & it is Powered by Mediatek MT6762 Processor. It is a Dual SIM Smartphone Support Nano GSM SIM Card, Connectivity Option’s Include 3G 4G, GPS, Wi Fi, Bluetooth etc, Sensor include Goryo Proximity Gravity etc. Download Official Stock Firmware Flash File …