Default HELP. Unable to flash stock rom after accidental flash

So I was in the process of attempting to unlock my phone my phone and accidentally flashed a the wrong ROM. (Barely found out it is impossible to downgrade after updating to 4.4.2).
Before i realized this, I accidentally flashed the T-Mobile tar and got my phone stuck on boot logo.
I went ahead and downloaded the latest firmware from sam mobile but am unable to flash it in Odin3.07. The following message is displayed

<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> SingleDownload.
<ID:0/003> aboot.mbn
<ID:0/003> NAND Write Start!!
<ID:0/003> Complete(Write) operation failed.
<OSM> All threads completed. (succeed 0 / failed 1)
<ID:0/003> Removed!!
<ID:0/003> Added!!

any help would be greatly appreciated!