Hey. I own n' use a Samsung Galaxy A01, and after buying it I had a problem that the camera features after a few days were gone! I researched and found no solution. I tried all things I could and even tried resetting all the settings to their default, but the problem continued. After a few days I sat down trying to figure out what the problem could be. I ended up finding the solution, and the solution was that the camera features are disabled when you enable power saving mode. I disabled it and all the features were back. If you're experiencing the same problem, try disabling power saving mode and check again.
