After spending many hours online helping people get their Incredible and Evo phones rooted with the
unrEVOked 3.21 Reflash tool, I've learned a lot. I rooted my Incredible which has the OTA 2.2 update as well, so I have personal experience. UnrEVOked 3.21 is a 1-click rooting program. When it's done, you'll have a fully rooted phone with S-OFF and Superuser installed.
This guide is for people with the Incredible or Evo running "stock" Android 2.2. The phone can have been shipped with Android 2.2 or received the "Over The Air" update.
In either case, again, we're talking about a stock phone running 2.2.
Preparation - Windows:
- You must install the HBOOT-Capable Universal Drivers. Read and follow the article to the letter. There is a ton of bad advice floating around on the IRC channel and in forums!.
- Re-read Step 1. The #1 problem for people is not having the right drivers installed. Try to get past your A.D.D. and do Step 1 all the way to seeing the Device Manager as shown at the bottom of that article.
- Unplug USB.
- Shut down the phone.
Rooting the Phone:
- Get the Reflash.exe program for Android 2.2 Incredible/Evo. Pick the one for your OS (Mac, Windows, or Linux). This program runs on your computer, not on the phone!
- Verify that you have an SD Card installed with at least 2Gb free space. If the SD is smaller than 4Gb, make sure it is FAT32 formatted. Look at it on your PC or Mac to be sure.
- Boot the phone normally.
- Enable USB Debugging (Settings, Applications, Development).
- Enable Unknown Sources (Settings, Applications at the top).
- Enable USB "Ask Me" mode (Settings, Connect to PC).
- Plug in the USB cable and choose Charge Only on the phone. On the Mac you may get an error about not being able to mount, click Ignore.
- On Windows (only), open the Device Manager and verify that you see the Android listed for ADB as shown in the pix at the bottom of the article linked-to in Preparation-Windows above.
- Run Reflash on the PC/Max/Linux system.
If you did everything right, and if your phone is a stock 2.2 Incredible or Evo, Reflash will come up and start the rooting process.
Be patient! The process involves several (4) reboots and some long periods of apparent inactivity. Let it go. Wait for at least 5 minutes before deciding it has become stuck.
How to know it worked:
Once the Reflash process completes (5 or so minutes), unplug USB and reboot the phone. It will look normal. Open the App tray and look for the Superuser app. If you open Superuser it will be blank, that's normal. For final confirmation, reboot the phone into HBOOT and see if it says S-OFF at the top. If so, you're rooted!
Backing up the phone:
Now that you're rooted and in HBOOT, it's time to do a complete backup of the phone (a.k.a. Nandroid backup).
DO THIS NOW!
- In HBOOT, using the volume buttons move to RECOVERY and press the Power button. The phone will appear to reboot but it will end up in the ClockWorkMod recovery screen. From now on use the trackball on the Incredible (click to select), and the volume up/down on the Evo (power to select).
- Move to Backup and Recovery, then select. This will show the Backup and Recovery menu. NOTE: You might have to select Nandroid first (info from IRC user, I didn't).
- Move to Backup
- Select to start the backup.
- When the backup completes (several minutes), press the power button to return to the main ClockWorkMod menu
- Select Reboot System, go.
When the phone boots to its normal mode, you're done! Now you can enjoy the benefits of root. I'll leave all of that to other sources on the net.
Problems?
If the above is followed to the letter, your chances of problems are slim to none. If you have A.D.D. and can't follow the directions, you probably shouldn't be rooting anyway

Here are some things to try if it dodn't work:
- Before deciding it failed, boot the phone and look for the Superuser app. It might have actually worked!
- Try running Reflash again with the phone in the correct state as instructed above.
- Go back and really follow the directions for installing the drivers. Some people just don't get it.
- If the phone seems to be bricked, do a battery pull reboot. In 5 days of working with the RC on the IRC channel, there were no bricks.