Disclaimer: Very much a noob to all this so my lack of success may very well be due to that.
No luck getting my radio to switch to GSM. Seems that every method I try has some step that simply won't work for me. Going to try a different rom bu...
I have seen a lot of users struggling to get gsm working on the SPH-L720. The solution is quite simple actually.
1. Open the rom zip file and add the following line to build.prop
You will get bars now but you ...