Quote:
Originally Posted by jd1639 View Post
Dude, I don't get what you're asking. Do you have a hardware issue or a software issue. Odin will flash the modem if you can find the right firmware for your device

The link deadlysin9 gave you is your only hope

Sent from my Nexus 5 using XDA Free mobile app
He's saying that in the thread I linked it mentions that the modem included doesn't work on ATT I337Z, and that seems to be the only available firmware.
Current Device: ATT Samsung Galaxy S4 (i337)

Past Devices:
Droid Bionic (GSM Hacked)
HTC Inspire 4G (Desire HD)
Nexus One
Motorola Backflip
HTC Dev Phone 1 (Dream/G1)