I currently am using a Samsung j3 prime with a 7.0 nugget os from metro pcs and have had no issue with the screen timing out at 30 sec. Mine status on for 2 min. So either the bug had been fixed or out didn't apply to the j3 prime.
I've discovered the solution after returning one Samsung J3 phone and getting ready to send back a second Samsung J3 and a Samsung J7 phone;While doing the "Factory Reset" ,I said to myself, "this can't be happening to three phones", so after doing a factory reset, guess what!,the 'timeout issue" went away on both phones! Someone should send this to Samsung so they can notify their clients !
It applies to my J3 Prime from Metro PCS which is also running 7.0 NOUGAT. So, no, it was fixed, and yes it applies to the same phone. Just because your phone is not having the same issue DOES NOT mean it was resolved for every other phone out there....
Im experiencing SAME issue with my brand new GalaxyS9. Please Samsung fix and update the software ASAP.
I love my phone and everything about it bit this issue is SUPER annoying and inconvenient.
I bought this phone yesterday and it times out in 15 seconds no matter what I set it on. Is this phone a lemon? Please tell me now so I can return it tomorrow. I have re-booted, everyting.