ok, stock global rom miui 9 stable., magisk rooted, camera2 enabled. i installed the google cam from here:
https://forum.xda-developers.com/redmi-note-4/themes/google-camerawith-hdr-mido-t3656196
and it kinda worked, but the hdr+ setting made no difference to the photos i took. i decided to compare so went back to stock camera, which takes normal photos fine. enable hdr, take a photo "unable to connect to camera"
i uninstalled the gcam, but i still have the same issue with the stock camera. as long as hdr is disabled it works.. enable hdr, "unable to connect to camera"
so now not only do i not have the improved HDR of the gcam, i dont have an HDR at all!
advice most appreciated.
edit: so ive tried a later gcam mod, and got it working, but it seems that some part of this modding just ruins the stock miui cam? it only works in basic photo mode.. hdr and panorama mode both cause crashes. big shame cos the panorama mode on the gcam is surprisingly crap, and i use panorama all the time.