First, you must apply for "permission" via the Mi Unlock tool. You sign into a Mi Account. You wait 360 hours (15 days). This is the "cooling period"—Xiaomi’s way of hoping you will forget your rebellious intentions. It is a psychological barrier disguised as a security feature. For the Mi 8 SE specifically, users often find that using the Xiaomi Community App (Version 5.3.31 or earlier) is the secret handshake; newer versions block the request.
Unlike a Nexus device of the past where a simple fastboot oem unlock sufficed, Xiaomi treats bootloader unlocking like a visa application to a suspicious country. For the Mi 8 SE, the journey begins not with a cable, but with patience. How to unlock Bootloader in XIAOMI Mi 8 SE with...
Here is where the Mi 8 SE (codenamed Sirius ) becomes interesting. If the standard unlock fails—perhaps because you bought a vendor-refurbished unit with a locked OEM toggle—you must enter EDL (Emergency Download Mode) . First, you must apply for "permission" via the