Here you find solution: https://xiaomi.eu/community/threads/miui-12-0-stable-release.56191/ and https://forum.xda-developers.com/xiaomi-mi-10t/how-to/rom-xiaomi-eu-rom-xiaomi-mi10t-redmi-t4184225
It is very easy. Download and upload the miui.eu software to your phone. The software is based on Chinese and there is by default recording available. I did the same last weekend and I have a recording.