GregLedet.net Adventures in networking, security, and other things

HTC EVO 4G, Froyo 2.2 Final release, Unrevoked3 and ROOT

Sprint and HTC released Froyo today as an over-the-air update to all of you out there that haven't already rooted your phone.  Well, my EVO was rooted within the first 48 hours of me owning the phone.  I recently dropped back to the stock unrooted image only to use Unrevoked3 to root it again.

By having a rooted phone, I can't get the Froyo update over the air, but I can still put it on my phone, and you can too.  Here's how to do it.

Step 0: I'm adding this late, but if you don't want to have to search for your apps again, check out AppBrain.  Install it before the upgrade, sync your phone up with the website, create a new list on the website and copy all your apps to that as a backup.  After you are done with the upgrade, install AppBrain first and sync it back up.  All your apps will be there waiting for you.

Step 1: You need to have a phone rooted with Unrevoked3.  That's the way I know how to go about it, so go root your phone with Unrevoked3 and come back.

Step 2: Download the rooted Froyo image from here. (Thanks netarchy!!!)

Step 3: Copy the .zip file to the root of your SD card on the phone.

Step 4: Power down the phone and reboot into the boot loader. To do this, make sure the power is off and hold the volume down button while holding down the power button.

Step 5: Once in the boot loader, use the volume rocker to navigate to RECOVERY. Select it by pressing the power button. This will bring you to Clockwork.

Step 6: From ClockworkMod Recovery, select " wipe data/factory reset".  Confirm it and do the reset.

Step 7: Select "install zip from sdcard", then "choose zip from sdcard".

Step 8: Navigate to and select "HTC-OTA-3.26.651.6-Final-Froyo-Rooted-Odexed-netarchy-signed.zip". Confirm the install.

Step 9: Once the install is done, navigate back to the top level of Clockwork and select "reboot system now".

And you're done!  You should now reboot into Froyo. You can verify this by going to Settings -> About Phone -> Software information.  You should see "Android Version 2.2" at the very top!

Once you have updated Froyo, you need to apply a couple of radio updates.  You do this the same way you installed the Froyo zip file.  After each install, reboot the phone and let it do a full reboot.  After it's rebooted, power down and boot into the boot loader to apply the other one.  Follow the instructions above (you don't have to wipe data for the radio updates) and you'll be just fine.  Here are those two files:

Radio update: 2.15.00.07.28
Wimax Update 26023

Enjoy the speed of Froyo and have fun with your newly rooted phone! For the full thread on xda, click here.

-Greg

Update: I've seen a HUGE spike in traffic in the last hour (that's to be expected) and I can see that a lot of you guys are doing the upgrade (I love Woopra).  Leave some comments below and let me know if everything ran OK for you.