I faced the same problem on EU rom v9.4.26.
Any version of TWRP didn't work but only 3.3.0-9.0 b8 worked.
1. download TWRP recovery-mi9-3.3.0-9.0-b8.img
2. connect your Mi9 to PC and turn it to fastboot mode
3. flash twrp
>fastboot flash recovery recovery-mi9-3.3.0-9.0-b8.img
4. turn Mi9 into recovery mode.
>fastboot reboot recovery
(PWR + Vol up works probably...)
Then Mi9 turned into recovery mode properly.
I updated to EU v9.4.26. manually.
your information are so helpful to solve it.
Thanks all!
Any version of TWRP didn't work but only 3.3.0-9.0 b8 worked.
1. download TWRP recovery-mi9-3.3.0-9.0-b8.img
MEGA
MEGA provides free cloud storage with convenient and powerful always-on privacy. Claim your free 20GB nowmega.nz
Only MI9..... NOT SE
2. connect your Mi9 to PC and turn it to fastboot mode
3. flash twrp
>fastboot flash recovery recovery-mi9-3.3.0-9.0-b8.img
4. turn Mi9 into recovery mode.
>fastboot reboot recovery
(PWR + Vol up works probably...)
Then Mi9 turned into recovery mode properly.
I updated to EU v9.4.26. manually.
your information are so helpful to solve it.
Thanks all!