I started this thread cause over the past 2 years their has been speculation that it's the sgh-i317 made in Korea that's not getting LTE out of the box. I tried everything. Changing my imei, nv items, roms, modems, etc...
Turns out that I successfully was able to get LTE a 1 1/2 - 2 years ago but really didn't know exactly how I did it. I was helping @Trash213 and rediscovered what I had done. Turns out It's a provisioning error that happens when the sim is placed in that phone for the first time and messes up that line forever. Asking T-Mobile to refresh the provisions does not help but they may give you a free sim.
DO NOT PUT THE SIM CARD IN YOUR PHONE FIRST
The Sim card must first be installed into another
T-Mobile LTE device or registered on one
First thing you need to do, is put your note 2 in LTE all by dialing *#2263# and selecting lte band prefrance then selecting lte all.
Get a new T-Mobile Sim Card.
Or put your Sim card in another t mobile lte device and dial *#2263# select lte band preference and then select lte all. Hit home button got to settings more networks change default operater to manual. Then select t mobile to register it. Don't forget to change the band prefrance back to automatic. It's the first choice in *#2263# menu. If you are successful at fixing your Sim card you may skip the next step.
Once the T-Mobile phone boots go to
settings, about, status.
When you see your phone number ( you may have to reboot or make a phone call ) you can then power off the device and remove the sim card.
Put the sim card in the Korean made sgh-i317 and if you are in a strong LTE area it should come up first next to your signal bars.
If still no lte then hit home button go to settings more networks change default operater to manual. Then select t mobile to register it.
Check that you are getting LTE either by looking at the signal bars or by going to settings, about, status.
Once you see that you are getting LTE go back to phone dialer and type *#2263# and select automatic.
For more information on this service mode code see
Hope this helps all those phones that couldn't get lte out of the box.