I've been waiting a little before rooting and installing a new ROM to make sure I don't need to return my phone for any reason. (So, it is stock now, no root, locked bootloader, KNOX still there, etc.)
So, far I've noticed three small problems, which I don't know if they are universal or just mine:
- Sometimes when I get a call, the touch screen is irresponsive. If I press the lock/power button twice, it seems to work again. (I now have set up to press home to answer.)
- It often feels a bit warm, more than I'd expect. (I have it in a case, though, a Spigen Slim Armor. It fits perfectly though.) But this happens sometimes when it is just sitting, not playing games. It is not really hot, but I can feel it warm in my pocket.
- Sometimes I get a pop between songs. See this post
(So, at least one person also has the last problem.)
I can live with any of the problems above, but I'd hesitate to have a defective unit which can have bigger problems later on. Is any of the above an issue for you? Any suggestions if I should exchange the phone?