[How-To] Root the AT&T Galaxy S II

**nykman** · 11-17-2011, 04:11 PM

Will this work for the Skyrocket as well?

I haven't found a real definitive answer on this, and the instructions over on the Skyrocket forums are a little sketchy.

Thanks!

**sucram6791** · 11-23-2011, 02:46 AM

tried rooting on a mac with this but all i get is "claiming interface failed"

anyone know whats wrong and how to fix?

**polobreaka** · 11-30-2011, 12:17 PM

Originally Posted by sucram6791

tried rooting on a mac with this but all i get is "claiming interface failed"

anyone know whats wrong and how to fix?

this is what i would like to know too. i only have a mac.

i tried searching for a guide, but it seems to be all over the place for macs.

**Mr.Gadget** · 12-02-2011, 10:48 AM

I just re-rooted mine last night to CM7 with complete success.
The trick to a successful root was using the SGH-I777 specific files:
, at cyanogenmod.com works, but it needs to be modified for the AT&T model.
For the recovery, use
For the CM7 image, use . The first time I ran the image install, it went seemingly too fast so I ran it a second time, immediately after the first and it took longer and looked more, "normal". So, you may need to run the CM7 install twice in a row too.

For example, Installing the ClockworkMod Recovery, download the instead of the 4.0.1.4 as the page recommends. The SGH-I777 specific recovery contains the same "zImage" referenced in the Cyanogen steps, so that is good.
Don't forget the s too or you might not have all the standard apps.

One more exception, I found in my case, was to copy the new CM7 image zip file to your INTERNAL SDHC memory, not your inserted SDHC card. For some reason, and this might be my card and not simply everyone's, it would not recognize my external SDHC. So, it worked to put the image on the internal and simply guide the recovery to it instead.

Anyway, hope this helps those out there having trouble!

**DroidBehavior** · 12-06-2011, 03:57 PM

this topic really needs to be updated, its an outdated method and doesnt even mention the flash increment

i rooted using this method only to find out its the worst method on xda forum, i re rooted and am fine but

ill explain. every time you flash something on an s2, it will have an internal flash counter that increases by 1, right now im at 1 because i rooted and flashed the CUSTOM cwm kernal. it only counts custom kernals unless you root a certain way

the only way to reset the count is to buy a usb jig

if you flash using a newer method (entropys return to stock with root method) and than install cwm by using android terminal you will not increment the flash counter

ALSO!

every one who flashes using this threads method will have a yellow warning triangle every boot up and an i9100 or so message, this is becuz u flashed a custom kernal

when i boot up it merely says galaxy s2 with no warning !

DO NOT USE ROM MANAGER

it is not stable on s2 and it ruined my cwm and every one on xda agrees, the developers strongly suggest you avoid it and just stick with the cwm recovery to install roms unless you want to pay for odin rom manager

**dingbat005** · 12-20-2011, 10:24 AM

So to confirm - if i did it this way - which you are the only person on these forums to mention is the WRONG way but which i am now reading on XDA more is an issue - the only way to reset my count to 0 with a jig? This is pretty disappointing to have gotten (at least partially) faulty info off these forums on something so major

**Mr.Gadget** · 12-20-2011, 12:26 PM

This method works fine. It does leave one with a yellow exclamation though. I've flashed numerous ROMs after this method just fine. There may be better, newer methods out there now, but this still works.
I also agree about ROM Manager. It bums me out too because I used it a ton on my Sprint HTC phone. There aren't any ROMs for use on it, with this phone, anyway, aside from CM7.
Bottom line with rooting, no matter what method you choose, is that you need to feel comfortable with your chosen method. So choose wisely, then jump in with both feet. It's like the high dive. Once you jump, it's not so scary after that...

Sent from my SGH-I777 using Tapatalk.

**Khaot1c** · 01-02-2012, 06:28 PM

Seems i've stumbled into another rabbit hole.
I'm still on a fact finding mission, trying to get the facts and How To straight before I root this thing.

Maybe I'm better off waiting until ICS goes live?! Then again, a Q1 2012 announcement really means Q3 when its all said and done....

**Se7enLogic** · 01-11-2012, 08:31 PM

ggffff

**mclifford82** · 01-21-2012, 09:48 PM

Nevermind, a post from a few pages ago answered it. You hold vol up and down then insert the USB cable to get to the download screen with the warning. Holding vol up / down and the power button goes into android system recovery. The initial post in this thread really should be updated.

**zero.** · 01-26-2012, 04:59 PM

is it necessary to activate the phone before doing any of this? does activation status affect any parts of the rooting process? if yes, how about flashing? my S2 is new and not yet activated.

**justlaxin13** · 02-03-2012, 05:20 PM

Ok so first off, no combination of buttons I try will get me into download mode, unless the phone is already plugged into USB. I tried plugging it in to get into download mode then unplugging it, opening odin and re-plugging it in. The problem then is that whenever i start odin i immediately receive a windows message saying "odin communicator has stopped working" and then odin shuts down. How can I get around this? Why can't i get my phone into download mode the normal way (or any way for that matter?)

**tneil** · 02-04-2012, 08:07 AM

Originally Posted by justlaxin13

Ok so first off, no combination of buttons I try will get me into download mode, unless the phone is already plugged into USB. I tried plugging it in to get into download mode then unplugging it, opening odin and re-plugging it in. The problem then is that whenever i start odin i immediately receive a windows message saying "odin communicator has stopped working" and then odin shuts down. How can I get around this? Why can't i get my phone into download mode the normal way (or any way for that matter?)

Did you power off your phone?

**bdizzel1982** · 02-21-2012, 11:17 AM

The link for codeworkx CWM recovery takes you XDA but then the link there does not work. Does anyone have a working link were I can download the recovery?

**sandoff** · 04-18-2012, 07:44 PM

Rooted with PhoneBricker ROM and everytime i go to send a txt message it crashes with an error message reading "LogsProvider has Stopped" and when i click ok the SMS app closes and the text sends. Whats the issue, its the only thing wrong with the ROM. Any ideas??

**papabear323** · 05-08-2012, 04:02 PM

having problems after flashing zedomax stock kernel my wifi don't work and i was wondering if i just flash something else will it work then

**Duality84** · 05-15-2012, 06:47 PM

Originally Posted by sucram6791

tried rooting on a mac with this but all i get is "claiming interface failed"

anyone know whats wrong and how to fix?

i'd like to know a fix for this as well, the only computer i have is my macbook pro and i got the same problem you did when i tried to root using the same method...and sadly, i cannot come up with anything for a solution either, surely someone has rooted on a mac and knows a method that works

**jaredw444** · 07-06-2012, 07:23 AM

my brother wants to upgrade his galaxy s 2 to ics... he's decideding if he wants to do the custom rom based on the upgrade, or upgrade thru at&t.
A couple questions, im assuming doing the upgrade thru at&t will unroot the phone, can i still use this method to reroot it??, also if i put the rom on here and cwm on it, if he goes to return it will doing the at&t update make the phone completely stock, recovery and all??

Thanks in advanced, i run an lg optimus, but i'm assuming this phone is like mine where if i want to return my phone i can just upgrade my phone thru my wireless company and it will get rid of CWM and root.

**Lawrence of a Labia** · 07-08-2012, 10:38 PM

1. Yes, root will be lost if you upgrade.

2. Be sure you're working with the original AT&T Galaxy S II/I777 and not the Galaxy S II Skyrocket/I727. You'll brick your phone if you follow anything below this.

3. If you're on ICS, the method in the 1st post is outdated since it's only meant for Gingerbread based firmware.

-The preferred way is to follow this . The reason I say preferred is that it will not increment the flash counter (Details in the 1st paragraph). If you're using windows, the likely path to follow is: 2c -> 3a -> 4.

-if you're looking for an easy way to root and install a custom (Siyah) kernel that includes ClockworkMod Recovery, go .

4. You'll have to follow this to return the phone to stock.

**shannonkish** · 07-20-2012, 04:47 PM

I am not wanting to install a custom rom, simply remove bloatware. What is the easiest way to do so? With my Galaxy S 4G, SimpleOneClick was all I needed.

My I777 has the latest push from ATT, 4.0.3.

**jaredw444** · 07-21-2012, 03:11 PM

Originally Posted by shannonkish

I am not wanting to install a custom rom, simply remove bloatware. What is the easiest way to do so? With my Galaxy S 4G, SimpleOneClick was all I needed.

My I777 has the latest push from ATT, 4.0.3.

Download titanium backup and delete unwanted apps thru that. Or download a file explore with su permissions and go to system/app folder and delete unwanted apps. Both very easy ways

Plays by prison rules

**donnebonn** · 09-02-2012, 03:24 PM

I just cliched ok the link for drivers and got: Page not found! (errorCode:404)

Is the e a URL for that?
Thanx

**Lawrence of a Labia** · 09-02-2012, 05:33 PM

**blb1980** · 10-02-2012, 11:53 AM

Hi. I have rooted but what I want to know is are there certain "better" keyboards this phone can have now that my phone is rooted? I read somewhere that with a rooted phone, you can have "better" keyboards. Thanks

**Lawrence of a Labia** · 10-05-2012, 02:25 PM

Originally Posted by blb1980

Hi. I have rooted but what I want to know is are there certain "better" keyboards this phone can have now that my phone is rooted? I read somewhere that with a rooted phone, you can have "better" keyboards. Thanks

AFAIK, there is no keyboard that utilizes "root". All the "improved" keyboards can be found in the Play Store. The popular ones include Swype, Swiftkey, Slide IT, and Smart Keyboard.