The Bad News It’s been decided that because of the memory constraints with the EVO 4G LTE’s partition, this device will not be seeing Android 4.3 rolling out over-the-air. The Good News HTC has already begun developing a new process that will allow more “technical” EVO 4G LTE customers the option of updating their devices manually. This actually sounds like the perfect compromised and shows HTC’s commitment to providing updates to those that want them (technical users), while leaving customers who couldn’t care less about Jelly Beans or updates the opportunity to live out their lives in blissful ignorance. HTC is considering ways to streamline the update process by providing customers with ways direct apply updates themselves.No details were provided on what they might have up their sleeves, but HTC asks us to stay tuned.It's as simple as finding the radio thread and flashing the zip file just the same as how you flash ROMs.But be careful, flashing the wrong radio CAN BRICK YOUR PHONE (only if you flash a different phone's radio).You only need to deploy the list and select a carrier.Some devices can be updated using software provided by carriers so, here you've a chance to get it downloaded.
Originally Posted by Yellowcard8992 Try a search for the flashable file for it and I believe that should work, otherwise you will have to flash back to a sense rom yes.
For this ROM if you scroll down it gives you a link for "latest radio and WImax"
t=745205 Do certain ROMS like CM6 for example need the radio to be updated or anything like that?
As you can see, drivers are an essential piece in Android world.
Just yesterday HTC committed to two full years of updates after release for new phones, but it looks like the company isn't keeping the updates to recent hardware.