Thank you for this post and this blog, it assuages my "why can't I get 4G up and running!?" on my EVO 4G LTE and confirms I am not the only one who is having the strange "if I cycle between 'CDMA Only' and 'CDMA/LTE' enough, I can connect for about 2 minutes in my home suburb of Roswell, GA" problem.
This blog is now keeping me from running into a Sprint store and harrying the poor reps. I'll be patient, expect a slow build of availability over the next couple of months, and keep an eye out for an OEM update. In the meantime, many thanks to anderml5 for the note about Elixer2... which gives me the "set the mode to this only" so I can actually force my phone to look for LTE only when I am in a tinkerin' mood.
