Can someone tell me if I want to install Xiaomi.eu from AOSP, it's necessary to flash stock miui first?and vice versa.?Or a data format it's sufficient
You can do 2 things:1-if you can see your device in device manager as qualcomm 9008 device you can try to pay a telegram guy to remotely flash rom via edl mode.
2-send your device to a authorized Xiaomi service.You will have to pay 20-30€.
TWRP version?You need to install latest skkk TWRP for alioth.You can try to download ROM zip on your device,boot in TWRP,install image,format data and reboot to system.