I followed the above instructions and had success as well.
1. Flashed "
xiaomi.eu_multi_HMK30Pro_V12.1.3.0.RJKCNXM_v12-11.zip" with "recovery-TWRP-3.4.2B-0623-REDMI_K30PRO-CN-wzsx150.img"
2. Reboot.
3. Complete the first setup, add wifi and activate, do the bear minimum setup to go faster, you can setup your apps later.
4. Reboot to recovery.
5. Install
Magisk Canary
6. Reboot.
7. Repackage Magisk Manager, re-launch the manager, don't create the shortcut, enable magiskhide.
8. Install Magiskhide Props module from the repo.
9. Reboot.
10. Run the folliwing commands in
Termux (Android Terminal)
11. Enable force BASIC key attestation (Option 2), for "Redmi K30 Pro", proceed with yes, yes so you can reboot.
12. Reboot, check CTS.