All modems in this thread are flashable through a custom recovery
How to Flash:
*Download the modem
*Put it on Internal or External SD
*Flash with Custom Recovery (CWM or TWRP or OUDHS)
Easily remove the Custom Padlock on I337 AT&T
The key is rooting with Casual
Install TWRP (Because Casual uses TWRP)
Make an nandroid
ODIN back to I337UCUAMDL
Root with Casual, it will also add TWRP
Restore your nandroid
Any big differences in modems for the at&t version on the northeast?
Not real sure about that, but I've been reading lately that MDB is causing issues with AOSP ROMs...
Could an I337M user PM me please? n00b or not, I'll walk you through it...
I am on my laptop. says i need to login to get to the addons