Great, thanks. About your issue... Can you call? E.G. does voice work?
So I suppose that means that I must run the root batch file after the phone has finished booting up, and is on the attached screen?
Hey, at what point do I run Root_S7.bat? Is it while the file is flashing? While it says "Galaxy S7"? When?
I ran it after the phone rebooted completely. But, then again, I can't get mine to work properly.
Yes. On your PC
I was able to get it to work using this method found on another site.
BuildProp Editor (easiest method)
Open Build.Prop with BuildProp Editor and change the following settings:
ro.cdma.default_numeric=310000 to 310120
ro.cdma.default_alpha=Chameleon to Sprint
ro.build.characteristics=Chameleon to Sprint
Make sure you grant root permissions when it asks. You may have to try this twice. Reboot and LTE should stick.