HTC rolled out the Android 2.2 (Froyo) update for the EVO 4G a couple of weeks ago. The Froyo update bought with it tons of performance improvements and many new features as well. However, with this update HTC also fixed the security hole via which the modders rooted the handset. Nevertheless, the folks over at XDA Developers have managed to root the EVO 4G running on Android 2.2. The process to root the phone is pretty complex and is similar to the Droid 2 rooting method.
Owners of EVO 4G running on Android 2.2 and interested in rooting their device need to flash a stock Android 2.1 ROM on their device first. During the rooting process, owners will also need to install the unrevoked boot loader on their EVO 4G.
Here is the step-by-step guide on how to root your EVO 4G running Android 2.2.