Gcam works very well with this patch from XDA-forum, too.
In difference to the first oreo weekly versions, where the camera was sh.., the MIUI cam works very great here, too...
Mi Note 3 is a very good phone.
First miui 10 ROMs, the camera software wasn't good, but since the 9.20 ROM it is very good, I've newest 12.6 eu Rom with german language installed and I'm very satisfied.
Everything works fine. Battery is good, only 1% over night, 2 days no problem for me with...
I'm happy with 8.9 20. Best miui10 camera quality in my opinion. Don't need api2 anymore.
In comparison with my wife's mi note 3 with MIUI 9 8.4.26 it's first MIUI 10 which can keep up with MIUI 9, especially in night scene. HDR is even better now.
You have to delete first cache and settings...
Same problem here, too.
Downgrading from developer 8.8.16 to any developer with Android 7.1 failed. Bootloop.
Flashing 8.8.16 again, no problems, but ugly camera.
Tested with serious twrp, deleting dalvik/wipe cache and data, but no chance.
Mi Note 3: Everything is better than in MIUI 9, especially sot and standby, but the camera is so much more worse. The camera was perfect in last MIUI 9 Xiaomi.eu weekly and now it's nothing. When i compare with my woman's note 3 (she has last MIUI 9), in dark scenes there are many miles between...