Really? I just installed
xiaomi.eu_multi_HM3_6.6.30_v8-5.1.zip
on my Redmi 3 pro. This should be the actual "weekly" IDO as far as read the post, but I can nowhere find any hint on the fingerprint sensor.
It's labelled "Redmi 3" for the model in the "about" section, but states RAM and FLASH...