As announced earlier, Xiaomi Mi 4 has finally got the official Windows 10 ROM by Microsoft. Yeah, that’s a great a news. If you are a Mi 4 (4G LTE) user, you can switch to latest Windows Phone 10 anytime. But remember, this is not an OTA update. You will have to download the ROM and Flash it manually.
But don’t worry. It is not hectic process since Xiaomi provides official Flashing tool to install this ROM that neither bricks your phone, nor avoids the warranty. It is Xiaomi Mi Flash Tool. You just need to download the Windows 10 ROM from this page, download the Mi Flash Tool and follow the Rom installation steps provided in this guide.
Please note, Windows 10 is only for Xiaomi Mi 4 LTE version. Do not try this on any other variant of the phone.