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View Full Version : Gain root access on a LOCKED phone.



themikemiller
06-30-2010, 06:09 PM
XDA-developers have a tested and confirmed a method to gain root access with a bootloader locked phone. That is root access while preserving your warranty.

You have to use the android sdk tools (adb, push, etc.), or FRF85B or FRF83 or FRF72 (FRF85B only on ATT), and a small modification to the battery to allow you to insert a sim card. The link has instructions for changing between radio images and links.

After this process you have limited root access, but can flash a fully rooted, odexed stock image or custom ROM like cyanogen.

[Tutorial] Root FRF85B/FRF83/FRF72 (T-Mo/AT&T) Without Unlocking (100% Confirmed) - xda-developers (http://forum.xda-developers.com/showthread.php?t=710842)

If you've lost root access after FRF91 upgrade or want to upgrade to stock FRF91 and keep root:

http://forum.xda-developers.com/showthread.php?t=717870

a.rivera
06-30-2010, 07:33 PM
why I don't have froyo yet?

iPhoneSlayer
07-01-2010, 09:44 AM
Hmmm...anyone try this yet?

Abrupt Demise
07-01-2010, 06:49 PM
Hmmm...anyone try this yet?

I tried it, but didn't test if I had root access. I've manually updated to FRF91 now too, so I'm not sure if I'm rooted still. And I don't know how to really check.

iPhoneSlayer
07-01-2010, 10:34 PM
Hmmm...anyone try this yet?

I tried it, but didn't test if I had root access. I've manually updated to FRF91 now too, so I'm not sure if I'm rooted still. And I don't know how to really check.
LOL. You're not messing with me cuz of my avatar are you? :)
Ya I never rooted so I don't know how to check for you. The only thing that I'm interested in rooting is to change the color of the Notification bar.

Abrupt Demise
07-02-2010, 12:18 AM
Ok, I think FRF91 released today broke this method. It relocked my phone and I can't use the same trick to root it again.

That's what I get for updating before making a backup. I really don't want to unlock my bootloader if I can avoid it.

themikemiller
07-04-2010, 02:44 PM
why I don't have froyo yet?

I believe this update only pushed to US carriers, ie ATT and T-mobile.


Ok, I think FRF91 released today broke this method. It relocked my phone and I can't use the same trick to root it again.

You can test root access with a market program like tesla flash light. Also, your phone was never unlocked. You only gained limited root access. My list of apps are Titanium backup, setcpu (but you need a custom kernel with new stepping), autokiller, juice defender, and some features of the more advanced file managers.

You can do this with FRF91, but you will have to revert to one of the earlier updates. Here is a link:

http://forum.xda-developers.com/showthread.php?t=717870

If you change your recovery image you will lose the over the air updates. I don't know if you can restore the stock recovery to reenable this afterwards, but I think this defeats the purpose of having limited root access on a stock phone.

I have an unlocked phone so I can't really test any of this.