With the radios update 4g works,any way we can get the rom updated with newer radios so we can keep rom as is
typically the roms do not update the radios....usually they only get updated if you manually update them or if you install a rom that updates them automatically such as sprint lovers....or thru the OTA updates.
just so happens the rooting method i used and many others use....it flashed the sprint lovers rom which updated all the radios. then i flashed myn rls4....then noticed some issues...after some reading found that the 1.90 pri doesnt play well with a 3.30 base rom (rls4)....now when rls5 comes out you can flash back to the 1.90 pri which is for the 3.90 base (the latest ota update)