Default Broken Radio

Hello. I recently used an app called 4G LTE Switch to try and toggle my LTE and I accidentally changed the radio band. Now the phone is stuck in roaming mode only and never switches back to sprint. I have tried factory resetting and switching roms. I am currently running HTC EVO 4G LTE SharkieRom 3.17 S-ON. The device is rooted and S-ON as I can't get it to S-OFF but thats a different problem. I would just like to get my radios working properly again.