14 ultra stuck on hyperOs 1.0.7.0UNAMIXM

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I bought a used xiaomi 14 ultra stuck on HyperOS 1 and if i try to see update log it says "You don't have permissions to accessthe update log.Make sure the accountyou signed in with has the requiredpermissions."Plus i want to install xiaomi.eu rom so if i try to unlock bootloader it shows an error message after i click add account and device "The place where the account isregistered does not match the place..."Can anyone please help me. I can pay for the service you provide after you...Read more