Hi, I started two days ago to unlock my poco x3 nfc
No problem for the firsts steps for me
I already had an account bcs my previois phone was a Xiaomi (used in france with classical android/miui, account region in France)
So I linked this account, and with the python "miunlock" package (on my personal Linux Mint computer), I passed all the first steps with no problem (I also have a french sim card with data, sms, mms, calls)
I'll give news next week after the regular 168h required on my phone