I have a Redmi Note 9S (Curtana) and I see 2 versions available for download:
xiaomi.eu_multi_HMNote9Pro_HMNote9S_V12.0.1.0.RJWMIXM_v12-11.zip
xiaomi.eu_multi_HMNote9Pro_HMNote9S_V12.0.3.0.QJWMIXM_v12-10.zip
My MIUI version is 12.0.3.0 and if I use the 12.0.1.0 that has android 11 does it count as a downgrade? Also the 12.0.1.0 is more recent (2021-02-02) compared to the 12.0.3.0 version (2021-01-21)
dont try xiaomi.eu_multi_HMNote9Pro_HMNote9S_V12.0.1.0.RJWMIXM_v12-11.zip
not work for me. not pass the signature to.
im going back at 11.0.11 with fastboot, is more fast and acurate in general than miui 12 and the camera have nice focus and make more quality pics.
waiting for 12.5....
(i know my english is horrible)