Phone will not stay locked on LTE in Global or LTE/UMTS/GSM mode. When in Global or LTE/UMTS/GSM mode and LTE does connect, it's momentarily and when trying to run a speed test or open a webpage, it quickly disconnects and connects to HSD...
Here's something that seemed to work for me:
You need to be rooted. Edit using a file explorer such as ES Explorer with root access.
Thanks to the OP - Just walked my girlfriend through it. Called Sprint and had her tell them the GPS story and Samsung provided instructions to reset the GPS however the MSL was needed. They provided it instantly.
Congrats on your sensation
Sent from my Galaxy Nexus using xda app-developers app
Simply awesome. One of the best threads ever started.....of all time..
Sent from my SAMSUNG-SGH-I717 using XDA