This is going to be hard to hear but I really think as a last ditch effort before someone suggests unrooting and a stop by your local Sprint store. Let's try and start from scratch.
I think you should just right off your backups and all. Just make sure all of your contacts are backed up to your gmail account. If you don't have one, now's a good time to get one. And all of your paid apps will be backed up on the market. And basically anything else you should be able to live with out or will be able to find again.
1. You are able to use your phone right? Open ROM Manager and scroll to the bottom and find were you can flash AmonRa recovery. Should be under something like "flash alternative recovery". Let RM flash it for you.
2. Boot into recovery to make sure you have RA as your recovery. It'll look different than what your use to. Look at the bottom of the screen. Are you running RA???
3. If you are running RA let's move on... Before you do anything else I want you to download a couple of zip files.
a. This is a formatting zip file I have been using for ever, not one issue yet with using it. Calkulin' Format All, here's the link:
http://db.tt/HOb0f5W
b. These are the most up to date radios for our evos.
Here's the link:
http://db.tt/7GOzbhV
c. This is a link to a Rom over at adx... Stock/Rooted Sprint Update:
http://forum.xda-developers.com/showthread.php?t=1038701
It the latest update just rooted, nothing specail done to it. Just download the first one. It's unthemeable but if this works you should be able to just start flashing any Rom you want.
To make your life easy, either using your EVO or your CPU make a folder on the root of your sdcard labelled "Rootfiles" and move the 3 zip files you downloaded above into it. It will save you time and headache not having to scroll all over the place to find the zip you need.
After you do all this hopefully youll be back up and running. You won't beable to use any of your old backups. But that might be for the best. And make sure your battery has a full charge, it makes a difference later on.
"Read all of the steps below before you start, I'm going to have you flash the new radios and you don't want to miss/mess things up there."
Now after you get those zips on the root of your sdcard, boot into recovery.
1. Flash that reformatimg zip I gave you. Now I know I'm going to probably get flamed for this but, flash that zip 3x(just to be sure everything is wiped good). The first time will take a little bit of time. The next 2x will take almost no time. Just let it do its thing. Now we have a nice clean slate to start with.
"DO NOT BOOT UP YOUR EVO, JUST STAY IN RECOVERY"
2. Next flash the Rom file.
"DO NOT BOOT UP YOUR EVO, JUST STAY IN RECOVERY"
3. Now you want to flash the new radios. When you do this you need to let of finish. Your EVO is going to rebooot its self a couple of times during the whole process. Let it do its thing, I've had it take anywhere from 3 minutes to around 10 minutes. Just get the zip going and walk away for a few minutes. And here's why you want a fully charged battery. If you were to run out of juice (or get impatient and pull the battery) while you are flashing the new radios... It's game over, you will brick your EVO. So ya... its kind of important not to mess this step up.
When the radios are done you will either be left in recovery (if it does, just boot up your EVO) or your EVO will be booted up. Which ever it is, your pretty much done. Resign into your gmail account and all that.
You should at this point also update your prl and profile. To do this go to Menu-> Settings-> Systems Updates.
Now.... see of it worked. Let me know how you made out and good luck.
Philly