Urgent Help Needed: Problem when flashing stock firmware.

[Casey_Grim85]

I had a custom rom/firmware installed and decided to go back to the default rom/firmware, so I used Odin to flash the stock rom/firmware (which I have done several times before) and it went well, but when the phone reboots I get the message below and when I tried using recovery mode in Kies I get a message that says "This devices version cannot be updated." I'm not sure what to do. Help!

What I get when phone reboots:

ODIN Mode
Product Name: SGH-M919
Current Binary: Custom
System Status: Custom
Knox Kernal Lock: 0x0
Knox Warranty Void: 0x1
CSB-Config-LSB: 0x30
Write Protection: Enabled
eMMC Burst: Enabled
Start: (224,1440)
SM Rev Check Fail:Fused: 5, Binary 1
Start: (224,1440)
SM Rev Check Fail:Fused: 5, Binary 1

Firmware upgrade encountered
an issue. Please select
recovery mode in Kies & try again.