I have also posted in xda but no answer.
forum.xda-developers.com
So I have a "mi10T Lite 5g" with miui global stable rom installed version 12.0.6 (A10)
I did all the steps (unlocked BL etc) and managed to get orangefox as the default recovery.
One think i noticed is that orange fox recovery MTP (with windows) worked only when the global rom was installed. When I wiped the storage and format the phone , the MTP with windows was broken and I could transfer/flash files only via OTG.
I tried to install the beta eu named "xiaomi.eu_multi_HMNote9Pro5G_MI10TLite_21.7.21_v12-11.zip" via OTG
...and the result was an error from orange fox that either it was not the correct fw version or i did not mount the system partition or some other options...
I wiped,format data and reboot in order to try again an the phone bricked. It would not respond to power button and would not even turn on. Send it to service.
The phone was purchased 2 weeks ago :/
any idea what went wrong? any instructions on how to flash the beta.eu?

[OrangeFox][Stable][Official][gauguin] OrangeFox Recovery for Xiaomi Mi 10T Lite
OrangeFox Recovery ℹ️ Information Status: Stable Version: R11.1_1 Release Date: 2021.06.25 Source Code: https://gitlab.com/OrangeFox ⬇️Download: https://orangefox.download/device/gauguin Installation...

So I have a "mi10T Lite 5g" with miui global stable rom installed version 12.0.6 (A10)
I did all the steps (unlocked BL etc) and managed to get orangefox as the default recovery.
One think i noticed is that orange fox recovery MTP (with windows) worked only when the global rom was installed. When I wiped the storage and format the phone , the MTP with windows was broken and I could transfer/flash files only via OTG.
I tried to install the beta eu named "xiaomi.eu_multi_HMNote9Pro5G_MI10TLite_21.7.21_v12-11.zip" via OTG
...and the result was an error from orange fox that either it was not the correct fw version or i did not mount the system partition or some other options...
I wiped,format data and reboot in order to try again an the phone bricked. It would not respond to power button and would not even turn on. Send it to service.
The phone was purchased 2 weeks ago :/
any idea what went wrong? any instructions on how to flash the beta.eu?