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Root Lost root after 2.2? You can, I believe, revert to 2.1.

humungus

Well-Known Member
I saw this on another form and I haven't tried it myself, so don't kill me if it's not right.

Go into recovery (like you did to apply the update.zip). Wipe your cache. Perform a factory reset/date wipe or whatever it's called from within recovery. You _should_ (again I take no responsibility here) boot into 2.1 where you can root and then apply 2.2 update again.

Good luck, and let us know if it does/doesn't work.

EDIT: To revert to 2.1:

1: Flash sbf. After this, you will bootloop.
2: Get into recovery like you did when you updated to 2.2.
3: Wipe cache.
4. Factory reset.

When you reboot you should be at stock 2.1. This would be useful if you needed to return the phone for warranty services, or if you need to reinstall 2.2 for some reason (like to gain root).
 
Or just follow one of the many other existing threads where poeeple discuss how to easily get root back.

Unfortunately, I have not found a thread where it makes it sound simple enough for me. If anyone has info on how to do it without moving stuff from the bins, I would greatly appreciate hearing about it.
 
Unfortunately, I have not found a thread where it makes it sound simple enough for me. If anyone has info on how to do it without moving stuff from the bins, I would greatly appreciate hearing about it.

Get into recovery like you did when you applied the 2.2 update. Then, scroll to them wipe cache option and execute it. Next, scroll to the factory reset option and execute it. When you reboot you should be good.
 
Get into recovery like you did when you applied the 2.2 update. Then, scroll to them wipe cache option and execute it. Next, scroll to the factory reset option and execute it. When you reboot you should be good.



After doing this will i have to set my phone up again? activate it? set up my gmail account/contacts/ apps/ settings?

just curious?
 
For fun I went from 2.2 to 2.1 via SBF. I got stuck on a boot loop.
To fix:
Took off battery.
Put battery back on.
Turned phone on holding Power + home button = Recovery.
Did a factory reset and fixed my issue.
 
Get into recovery like you did when you applied the 2.2 update. Then, scroll to them wipe cache option and execute it. Next, scroll to the factory reset option and execute it. When you reboot you should be good.

In my haste I did the update without moving or copying the update.zip file (I left the file in the root of the SD card). I just updated which worked but obviously lost root. SO, if I do the wipe cache option will this work for me too reverting back to 2.1?
 
Unfortunately, I have not found a thread where it makes it sound simple enough for me. If anyone has info on how to do it without moving stuff from the bins, I would greatly appreciate hearing about it.

Hows this

Wait a day of two I'm sure Bird will post how to root 2.2 soon.
 
In my haste I did the update without moving or copying the update.zip file (I left the file in the root of the SD card). I just updated which worked but obviously lost root. SO, if I do the wipe cache option will this work for me too reverting back to 2.1?

I edited the OP with instructions. You'll need to flash the sbf file. You'll then bootloop. Pop the battery and reinsert. Then get into recovery. Wipe cache and then factory reset. Then you'll be in 2.1 and can root properly and reinstall the 2.2 zip (or you can download the Bootstrap and Rom Manager apps and install through Rom Manager).
 
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