I have similar problem as ahmedrafiq. Camera and sound recording doesn’t work. When powered off and charging, I get the charge icon, but I think it gets hung. I then have to hard reboot to use again. Didn’t test Bluetooth and GPS. I am using 2018 v. But….I am not much bothered about the bugs, not using those features anyway. I am happy that the tab got upgraded (Samsung told they are no more issuing any more updates) from Android 5.1 (almost unusable state…System UI error and other issues) to 7.1. Maybe I can use it a couple more years.