Re: Ubuntu Touch Installation Guide for Xiaomi POCO X3 NFC / X3

For those looking to use a Poco X3, it is now much more difficult to unlock the bootloader, especially on MIUI 14.

To unlock the bootloader, you MUST:

• have a China region Xiaomi account (if yours is global, you need a new account)
• have a SIM card in the phone
• link your phone to the account and add the phone number (SMS verification often fails)
• request unlock authorization at midnight China time (limited to 2000 requests worldwide daily)

All known methods to bypass the 7 day waiting period still need a code that is generated server-side only after linking a phone number. A phone number can only be added to your Xiaomi account if your region is set to China. And you cannot change the region of an existing account. While you can use a phone number from any country, the account region must be set to China.

Information is Xiaomi community is outdated and unlikely to be updated.
Xiaomi is making it more difficult to unlock bootloaders across all models, but has not yet explicitly banned unlocking. They have also instructed their service centers not to unlock bootloaders for any reason other than when necessary for repair, and to ensure they are re-locked when returning the device to its owner.