[Q] Need help unrooting. Need to return for warranty
I recently noticed a cluster of dead pixels in my screen and need to exchange it for a new device. To do this, I presumably need to unroot and revert to S-ON, even though this is purely a hardware problem.
However I don't know where to start honestly, as this is my first phone I've ever rooted and am still learning (somewhat slowly). I made a backup of my stock rom, but I think I may have made it too far into the process, as the rom is already has supersu and cannot OTA update. I can't seem to track down a RUU, which is what I think I'm needing, but I'm not sure if those are released for this device yet.. I think I understand the process if I can simply track down a RUU or figure out what to do next. I'm sorry if this seems like an ignorant question, but honestly I"ve tried figuring this out for myself and I'm just needing a little help I think. Thanks in advance.