[QUOTE=budco2000;45687886]So after being with AT&T since 1998 I'm am going to give T-Mobile a try. Unlimited everything for $70 with no throttling. Excellent T-Mobile coverage in my area as well as LTE. My S4 is already rooted, custom ROM installed, and sim unlocked. However I can't get the dialer codes to work to enable AWS &HSPA. *#7284# or *#0808#. I have downloaded and installed the required Phoneutil.apk and no go. Anyone have any suggestions. here is the link on how to enable the T-Mobile bands, but it's not working for me. http://galaxys4root.com/galaxy-s4-tu...i337sgh-i337m/
You have to be on a stock touchwiz rom to get the dialer codes to work.They wont work on a custom rom or aosp rom.