mobile

I am trying to get back to stock firmware after using a custom 5.0.2 ROM. I've tried about everything I could find on forums/website and have come up empty handed. I have tried all the general stuff... USB Cables, USB Ports, Computers, etc. In the process of trying to flash back I tried going back to an older version of android which I guess was a bad idea, because that breaks the sound because of KNOX. ¯\_(ツ)_/¯

When trying to flash MJA with Odin this is what I get.

This is what I get on the phone screen.
ODIN MODE
PRODUCT NAME: SPH-L720
CURRENT BINARY: Custom
SYSTEM STATUS: Custom
KNOX KERNEL LOCK: 0x0
KNOX WARRANTY VOID: 0x1
CSB-CONFIG-LSB: 0x30
WRITE PROTECTION: Enabled
eMMC BURST MODE: enabled
START [224, 1448]
SW REV. CHECK FAIL : fused : 5, Binary : 4

This is what shows up in Odin's log window.
<ID:0/003> Added!!
<OSM> Enter CS for MD5..
<OSM> Check MD5.. Do not unplug the cable..
<OSM> Please wait..
<OSM> L720VPUEMJA_L720SPTEMJA_L720VPUEMJA_HOME.tar.md5 is valid.
<OSM> Checking MD5 finished Sucessfully..
<OSM> Leave CS..
<ID:0/003> Odin v.3 engine (ID:3)..
<ID:0/003> File analysis..
<ID:0/003> SetupConnection..
<ID:0/003> Initialzation..
<ID:0/003> Get PIT for mapping..
<ID:0/003> Firmware update start..
<ID:0/003> sbl2.mbn
<ID:0/003> sbl3.mbn
<ID:0/003> rpm.mbn
<ID:0/003> aboot.mbn
<ID:0/003>
<ID:0/003> Complete(Write) operation failed.
<OSM> All threads completed. (succeed 0 / failed 1)