Instructions on the website miui.com
Download the firmware to your computer (it is possible to immediately download to the tablet).
Connect the tablet to the computer.
Create a folder downloaded_rom in the root
Transfer the firmware downloaded to your computer to this folder.
Disconnect the tablet from the computer.
Locate the updater application on the tablet's desktop, at the top right, find the button with three horizontal dots, select select update package from the drop-down menu, and then select the firmware path in the downloaded_rom folder.
All other actions to restart and update the firmware will be done by the application itself, followed by the launch of the tablet.
Post has been editedutlanhaven - 24.12.15, 21:45