it works on my device samsung A8 2018 Indonesia, or mybe you can try another version:
B-S-G's Modded Google Camera 5.1.014 with HDR+ for Android 7.0 / ARM64 v1.5f All-in-One Full
this version also works for my device, but I love the earlier version's result on HDr+ (B-S-G's Modded Google Camera 4.4.020 with HDR+ for Android 7.0 / ARM64 v3.8c All-in-One Full Manual), the picture result is better than my samsung A8 stock camera apps, especially it can get more detail in direct sunlight or low light with larger amount of file size
---------- Post added at 10:02 AM ---------- Previous post was at 09:34 AM ----------
after download apk file, install it as normal apk, never use the setting on the website, in the camera menu will appear HDR+, you need to do is clik the HDR+ on,,, if you go to setting, it will crash or freeze
I have use open camera to test If my device is support camera.api2, & it is supported, ,,,(find on open camera setting, camera.api2 enable)