Please wipe all data in Recovery mode if you want to update to a discontinuous ROM version, or downgrade to an older ROM version using MIUI full ROM pack. If you upgrade from MIUI Stable ROM based on Android M to MIUI Developer ROM based on Android N, please flash it via Fastboot update. Recovery update might cause upgrade failure.
Step 1: Download the latest MIUI ROM file Download here . Rename the downloaded file to “update.zip” on the computer.
Step 2: Copy the package which is named update.zip to sdcard into the root directory of the sdcard .(Do not put it in any folder)
Step 3: Insert the sdcard into the handset and power on. Enter the Recovery mode of your device.
There are 2 methods to do it as follows:
- Method 1: Launch ‘Updater’ app on your device, click the “…” icon at the top-right corner, and select ‘Reboot to Recovery mode’ to enter.
- Method 2: Turn off your device and then press & hold both Volume up button+Power button at the same time to enter Recovery mode.
Step 4: In Recovery mode, use Volume up & Volume Download to select and Power button to confirm.After entering Recovery mode ! choose the language you use, select “Install update.zip to System One” and Click yes to confirm, and then your device will begin updating automatically. Wait until the update is completed, choose ‘Reboot to System One’, and then your device should boot to the new version.
Credit: en.miui.com