you have ryzen cpu?Ok, i'm trying to update, but my two computers can't find my Mi11 Ultra (in fastboot mode) from comad "fastboot devices"; i give an empy line.
ADB drivers just installed, the last version from the link on the guide made by @katerpanne, i think that is an USB driver problem.
I've tried on USB 2.0 and 3.0, from desktop with W11 and from notebook with W10.
Could someone give me USB driver for Mi11 Ultra?