mobile

Hey guys,

I decided that I wanted to root my phone for a custom rom. I used towelroot and odin to root my phone. It rooted successfully.

Heres where the problem is:
I installed twrp, and scrolled through menu options so I could install a Recovery. However, whenever I tried to install the rom, it would always take me to the default boot menu, therefore i was unable to get a rom. Long story short, twrp has caused my download mode menu to enable write protection. I went onto supersu, and removed my root. I just want to go back to factory/ stock rom and remove root. I downloaded samsungs firmware from their site and tried using odin, but this gives me a fail and states that "complete (write) operation failed".

My phone displays:
SGH-I337
Samsung Official
Custom system status
Knox kernal lock: 0x0
Knox Warranty viod: 0x0
CSB-config-lsb 0x30
write protection: enable
eMMC burst mode enable

I have tried to flash it back to stock so many times. Now I am getting a msg that says "firmware upgrade encountered an issue" -kies does not help remove this.

-I am using the original cable
-I can only boot into recovery and download mode.
-My main goal is to go back to stock.