I wasn't able to contact you on Official site since anti spam always ban my account creation.
The latest Xiaomi monthly EU ROM based on MIUI 12.5.1-Android R has too many animation lags and app launching is also too slow.
Tried everything but didn't worked since it maybe an issue from the ROM itself.
Please suggest me something and have a check!
well as for me and the way I use it, I think it's smooth and okay. you can try to see if it works good on you. here is the link https://androidfilehost.com/?fid=14943124697586376533
i didn't test it, as soon as i noticed that 12.5.4 isn't smooth as 12.0.9, i immidiately switch back to 12.0.9
I had your problem too! My first TWRP was "3.4.0-0 By mahajant99" and got the Unable to Decrypt message.
Then I tried to decrypt phone using this https://forum.xda-developers.com/t/...ck-twrp-factory-image-stock-recovery.3358711/. Installed the app in Windows 10, executed the "Erase All Data / Decrypt Internal Storage". But there was an error there too, so I think it didn't decrypt anything...
After I changed TWRP to "twrp-3.4.0-15-surya-mauronofrio" and rebooted to System and MIUI was on the screen!
After the boot I got a message saying my phone was locked and to unlock it I had to enter my Xiaomi Password and that I did and the phone got unlocked.
I think this was all I did...
Now I have the EU ROM and Root.
By the way, in the "TOOL ALL IN ONE" there is no option for X3, so I selected Poco F1 I guess... I know it was another Pocophone...
Just remembered I read in another site about flashing another .img and a ZIP file, and I asked about it here. Just went to history and here it is: https://unofficialtwrp.com/xiaomi-poco-x3-root-twrp/
I don't know if it will help you, but in there states that, after flashing TWRP, DON'T BOOT TO SYSTEM! First flash "no_verity_opt_Encrypt.zip". Again I ended up not doing what it says there (flash "Vmbeta.img" and flash "no_verity_opt_Encrypt.zip"), but it's another option for you, in case your phone is still stuck on TWRP...
Good Luck !!!!!!!!!!!
Flash the global fastboot rom using Mi flash .... make sure you haven't relocked the bootloader by unchecking the necessary box
Reboot into system
Boot into fastboot
Flash Orangefox recovery image using adb
Reboot into recovery before you reboot into system or you will lose OF
Boot into OF then flash Xiaomi.eu
Format data .....
Reboot into recovery
Reboot to system
These are the steps I used.