Also, are radio images only device specific or are they also carrier specific and/or ROM specific? In other words, does it matter what carrier or ROM for any given radio image?
edit: My One M8 converted GPE is S-off and Super CID.
I have two HTC One M8 phones. One is a T-mobile phone converted GPE. The other one is a brand new unlocked phone I just bought from HTC. I've been having some trouble with my GPE phone not having LTE service where my new unlocked one has full service (T-mobile network). Radio version on new phone is 1.24.21331147A1.09G. Old phone is 1.22 something. Is there a way to pull radio.img off the new phone for flashing to GPE phone? Or is there a flashable 1.24 radio version around somewhere?