[EVO 4G Q&A, Help & Troubleshooting] levi727:
Well, sorry it's long, but for what it's worth...

I have had my Evo for a bit now. Had one that wouldn't update with the first OTA, and exchanged it. (Got the more HTC widgets to work that way too)

This one I rooted with a few other methods when it was on the 1.47 update.

I'm seeing that I can't post outside links, so I'll try to get them here somehow. Take the space out of the url, add the http n such where you see fit...:

Pages I used for that are here:

forum.xda-developers. com/showthread.php?t=690762

forum.xda-developers. com/showthread.php?t=701835

Mixed with usefulness from this:

ww.vimeo. com/13124383

And somehow this too:

forum.xda-developers. com/showthread.php?t=718889

I ended up with the rooted 2.1... Great!

Then I saw all the goodies 2.2 gave when I saw the prompt for my phone to update. So I figured I'd chance it. I knew I'd lose root probably, but it might be worth the wait...

I updated to 2.2 using this method instead of doing the OTA:

forum.xda-developers. com/showthread.php?t=743352

All was well.

But I ended up with some issues:

1. My text message sound would come through the speaker (loudly) WHILE ON A PHONE CALL... (and when ya have daffy duck saying "My, aren't we touchy today" for your txt sound, it makes it hard to hear the other person talking ;)

DEFINITELY CAN'T have that....

2. I updated the radio with the zip, and then...

3. The phone eventually started to become really sluggish. (down to 33M available mem on EStrongs task manager widget with nothing running) Though I don't blame the rom only for that because in hindsight it was probably my changing around the ES Task Manager Widget to "auto kill on standby," and never truely investigating...

So I ended up not liking what I had done, and wanted to "start fresh" and deliberately do each step.

I used this other nifty find that I found at the bottom of part 1

(I still have this and can share if this link ever dies)

forum.xda-developers. com/showthread.php?t=685835 (172MB)

It will put your phone back to as old as it can go. The puts the phone back to a rom one step lower that I started my original phone with.

(I'd put the number here, but I can't remember, and never wrote it down. - it's 2 steps lower than the 1.47 version)

It'll clear your phone back to stock 2.1, and let you do the updates to the version you want to be at.

The phone will then prompt you that there's an update for the phone... over and over until eventually there ya are, back to the update that gives ya 2.2.....

**Keep in mind, I don't make any claims about the radios... or versions thereof.**

wifi tether:

code.google. com/p/android-wifi-tether/downloads/list

will also work with a rooted 2.2 if you use the ...pre7 version.

Not sure if any of these links help, but it's what I have to contribute all in one place.

But here I am.. back at a non-rooted 2.2 phone.. just waiting for an easier way to have both 2.2 and root (for wifitether and removing sprint apps) without other weird issues...

unrevoked.com only works on non 2.2 so if you do this, and don't do the Froyo update, you can still use unrevoked.com to get root (for that I mean wifi tether to work)

I'll be checking back, and researching more as time goes on.