Hallo,
i am new here and i have also MI 11 Pro from Trading Shenzhen. I have exactly the same problem, but in my case it somehow didnt work after flashing fastbootrom.
I tried to install the EU Rom via TWRP, everything was ok but after reboot (first boot for EU Rom) internal storage wasnt acessable anymore. I tried all ways described here but it didnt work.
The only way to make the Internal storage acessable again was to flash fastboot china Rom from Star.
Can someone please give me links and instructions how to solve the problem? I am trying sice days now without sucess.
What i did:
I Used offical link to flash TWRP, it works fine: twrp-3.5.1-mars.img
Wie Sie Ihr Xiaomi Xiaomi 12S Ultra / Mi 11 Ultra / Mi Mix 4 mit TWRP aktualisieren, um Xiaomi.eu OTA Updates zu erhalten - Ein einfaches How-To-Tutorial
tradingshenzhen.com
I used this EU Rom:
xiaomi.eu_multi_MI11Pro_MI11Ultra_V12.5.20.0.RKACNXM_v12-11.zip
wiped cache and data and flashed it in TWRP.
Sucessful installation via TWRP, but failed at first boot because internal storage is not acessable, so it only boots to TWRP.
I tryed all written solutions to get access to internal storage. Everything failed.
After this i flashed fastboot China Rom, Star to get it working again, but nothing else helps so far.. this version:
star_images_V12.5.20.0.RKACNXM_20211027.0000.00_11.0_cn_593548f483.tgz
But i want to have xiaomi.eu rom.
I also tried with XiaoMiTool V2, same result.
It would really mean a lot to me if someone can give me a hint or exact instruction and versions of Rom or TWRP that is working.