This is the info from Odin..
<OSM> Enter CS for MD5..
<OSM> Check MD5.. Do not unplug the cable..
<OSM> Please wait..
<OSM> I337UCUAMDB_I337ATTAMDB_I337UCUAMDB_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> Get PIT for mapping..
<ID:0/003> Firmware update start..
<ID:0/003> NAND Write Start!!
<ID:0/003> Complete(Write) operation failed.
<OSM> All threads completed. (succeed 0 / failed 1)
My phone also has some red text during the process (while its in Download mode) which says..
SW REV. CHECK FAIL : fused : 4 , Binary : 1
Not sure if that's important but the more information the better I suppose.
Anyway, if anyone has any leads or information that might be able to help me, please and thank you very much.