In order to Root your Sprint EVO you need a couple of things. First you'll need some software from Unrevoked called unrevoked3. You'll also need HBOOT drivers if you're on a PC.
Uninstall HTC Sync if you have previously installed it
Install the HBOOT drivers (see unrevoked.com for more info).
Turn on USB debugging by going to Menu > Settings > Applications > Development > USB debugging.
Plug your EVO into your computer and choose charge only for the USB connection.
Run unrevoked's reflash_package.
That's it!
If you root your EVO on a Mac it's much easier. You basically just run unrevoked3 and it does everything for you.
If you root your EVO on a Mac it's much easier. You basically just run unrevoked3 and it does everything for you.