The phone will only boot into Download Mode, but the Stock AT&T image will need Flash. It seems as if the phone was updated to Kit Kat, and now it will not flash the stock rom (because it is 4.2). I have tried Samsung Kies, but Kies will not do Update or Recover the Firmware. The phone is recognized by my PC, but thats about the most I've gotten out of it.
In download mode I get the following:
Product Name: SGH-I527
Current Binary: Samsung Official
System Status: Official
Knox Kernel Lock: 0x0
Knox Warranty Void: 0x1
Bootloader AP SWREV: 4
Write Protection: Enable
Any help would be great. The warranty is voided due to third party screen replacement. Just need any advice. Thanks.