[Sprint HTC EVO 4G LTE] Airtioteclint_fbi:
So, I had my phone flashed and rooted but it had a very old version that was crashing on me like crazy. Obviously, they guy who did the job and sold it to me, warned me to not use LTE and he had configured it to be disabled by default.

There is a configuration setting that got reset after I updated to Jelly Bean, which by the way there was another update that I just received today. (Ver: 3.16.651.3 710RD).

So I know how frustrating it gets when you want the Internet to properly work including video playback and also MMS settings. There is actually a video on how to configure these things but I just wanted to drop these settings here for everyone that can't view videos to just read them. So here are the steps to follow for: (connection lost to server, retry... etc). My phone does not have "root" and everything works flawlessly. Flash is kept after software updates so, no need to reflash if you update HTC Software.

Dial ##3282# then enter the pass which by default is 000000 unless you have changed it to something else when changing prl.

After that is done you should see the EPST configuration panel, if checked, uncheck USB Charging that's at the bottom.

Navigate to: Advanced>RTSP/HTTP Setting for RSTP Proxy IP just tap it and enter the following:

RTPS Proxy IP = 0.0.0.0

RTSP Proxy Port (mine is 554) and works fine

HTTP Proxy IP = 0.0.0.0

HTTP Proxy port 8085

Now; go back using the back "<" illuminated button on the bottom and configure Advanced>MMSC Settings as follows (tap to configure):

MMSC = h ttp://mms[dot]vtext[dot]com/servlets/mms and hit ok

MMS Proxy (leave it blank, erase whatever is there)

MMS Port enter 8080 and hit ok

MMS Protocol (I'm using 2.0)

The next trick is to download Go SMS Pro from app store and configure its settings as follows:

Tap the squared boxed button that's at the left top corner and then select "Settings" from the pop up screen.

Navigate to: MMS Settings>MMSC enter h ttp://mms[dot]vtext[dot]com/servlets/mms MMS Proxy, mine is blank so I don't know if there is an actual value for it; and for MMS Port enter 8080

Exit out from it and it should save it.

This should enable to you to send MMS however, when attaching photos to send, always choose MMS icon that's on the left when you get the screen options of smiley face, mic, go with hand icon, paint, last is the MMS icon, you should always select it when sending MMS otherwise it will send link instead of the actual image.

== Additional working features with these configuration settings ===

Now, comes WiFi Thetering, at the time of this post I was having trouble connecting to the Internet since I moved to my new apartment so I lost my Internet because I haven't called in for a new service. I became curious about my internet connection. I had tried it before and it failed to keep its connection alive. I would get error, disconnected from wireless service etc etc. It would never connect and it worked one time luckily. However after I lost it, it never worked again, I read today from an article about the USB Charging option with custom ROM however mine is stock. So, I disabled USB debugging from settings and connected it while it was open and it worked fine, it hasn't disconnected since then, however the USB Debugging check appeared again after I had it connected. It could be USB debugging setting that is messing the connection, so try disabling it and connecting with USB.

I haven't tried hotspot yet as I want to publish this before disconnecting since I don't have Internet but from my phone's. If you have something to add, or have a question, just post it here. I will try to help, as for the configuration, everything works fine, Facebook, Pandora, twitter, fast internet speeds, and also Youtube. Did I mention the speeds for WiFi tethering is duper fast? Yeah, it's almost like any regular Internet service, very fast. I"m using Windows 8 Pro 64-bit btw :)