[SGH-T889] CF-Auto-Root

Chainfire

Moderator Emeritus / Senior Recognized Developer -
Oct 2, 2007
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Check your device model ! Settings -> About device -> Model number. See the third post for exact support model numbers. If your device is a totally different model, it will not work (may even brick) !



CF-Root is the root for "rooting beginners" and those who want to keep as close to stock as possible. CF-Root is meant to be used in combination with stock Samsung firmwares, and be the quickest and easiest way for your first root.

Donate
CF-Root has been available for many devices and has clocked over 8 million downloads. This is not even counting custom ROMs that already include it. Don't be a leech, buy me a beer (and use the "Thanks" button!). Imagine if every CF-Root user has donated me $1...

What's installed
- SuperSU binary and APK
- Stock recovery

Installation and usage
Flash the CF-Auto-Root package as PDA in ODIN (details on how to do that are in next post), and your device should reboot into a modified recovery (signified by a large red Android logo) and it will install SuperSU for you and restore the stock recovery, and reboot back into Android.

If you don't get to the red Android logo, boot into recovery manually ("adb reboot recovery", or boot while holding Power+VolUp+Home).

Using this root increases your flash counter. You should run Triangle Away (see below) after rooting to reset the counter. Note that if you want to run custom kernels or custom recoveries, your flash counter will be set to 1 at every boot. Either configure Triangle Away to reset the counter at every boot (Play version only) or only reset the counter when you need to go into warranty.

Did you see the red Android logo during rooting, but SuperSU does not appear? This may sometimes occur due to left-over files and settings, however, you can usually install SuperSU from Google Play at this stage and it'll just work.

Not included - Triangle Away
Triangle Away can be used to reset the flash counter after installing CF-Root. The flash counter keeps track of how many custom firmwares you have flashed, as this voids warranty. (No idea what this about ? Read up on it, you will want to use this !)

Not included - adbd Insecure
As this CF-Root does not include a custom kernel, adb shell does not have root access by default (you can still get it by typing su inside the shell), nor is adb remount supported, nor will adb push and adb pull work on system files. adbd Insecure can be used to remedy this situation. (No idea what this is about ? Don't worry about it !)

CF-Auto-Root homepage
http://autoroot.chainfire.eu/

CF-Auto-Root main thread
[CENTRAL] CF-Auto-Root
For requests for new roots and generic discussion - please keep device specific discussion in the thread you are viewing now.
 
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Chainfire

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ODIN Installation (detailed)

- Follow these instructions to the letter. Do not touch any buttons or checkboxes that are not listed below to touch!
- Unzip the attached Odin3-vX.X.zip file
- Download and unzip the CF-Auto-Root-....zip file (see posts below this one)
- If you end up with a recovery.img and cache.img file, you've extracted twice. You need to end up with a .tar.md5 file - don't extract that one
- (USB) Disconnect your phone from your computer
- Start Odin3-vX.X.exe
- Click the PDA button, and select CF-Auto-Root-....tar.md5
- Put your phone in download mode (turn off phone, then hold VolDown+Home+Power to boot - if it asks you to press a button to continue, press the listed button, or run adb reboot download command)
- (USB) Connect the phone to your computer
- Make sure Repartition is NOT checked
- Click the Start button
- Wait for Android to boot
- Done (if it took you more than 30 seconds, you need practise!)

- NOTE: Sometimes the device does *not* boot into recovery mode and root your device. Just do the entire procedure again if this happens. If it still will not install root and such, make sure that in Odin "Auto Reboot" is not checked. Then after flashing, pull the battery, and boot with VolUp+Home+Power button to boot into recovery manually. This will start the install process.

New to Samsung? Unfamiliar with Odin? Think all the above is a hassle? Get used to it. It's very simple, and us Samsung folk use Odin (or Mobile ODIN ;)) for everything! It's so very very convenient once you get used to it. Notice the 30 second comment above? For experienced users, the entire process indeed takes only 30 seconds!

You may now optionally want to install and run Triangle Away to reset the flash counter.
 

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teshxx

Senior Member
Jul 19, 2010
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Somebody rooted through a modified kernel instead of a modified recovery, and as such was able to dump the stock recovery.
Nice! Thanks.

---------- Post added at 04:16 PM ---------- Previous post was at 04:08 PM ----------

Somebody rooted through a modified kernel instead of a modified recovery, and as such was able to dump the stock recovery.
Since this has the stock recovery, does it mean I can have SU and still be able to receive OTA updates ? (Just picking your brain and learning)

Thanks.
 

simplelife

Senior Member
Jul 6, 2012
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Mobile Odin & Triangle away should work now ? Thank for your magic..:good:
Edit: Triangle Away work , Mobile Odin not support yet.I just got SuperSU pro & ADBDT insecure and many thank for ADBD information .
 
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Tiffany84

Recognized Themer
Jul 27, 2010
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Man, that was fast. I was so excited to get that to you but never in a million years would have guessed you would have gotten it done that quick. Thank you, thank you, thank you. Lol. U truly are a legend;)
 

Tiffany84

Recognized Themer
Jul 27, 2010
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chain will i keep the stock kernel?
From the OP:
Not included - adbd Insecure
As this CF-Root does not include a custom kernel, adb shell does not have root access by default (you can still get it by typing su inside the shell), nor is adb remount supported, nor will adb push and adb pull work on system files. adbd Insecure can be used to remedy this situation. (No idea what this is about ? Don't worry about it !)

So yes, you will keep the stock kernel.
 
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guthrien

Senior Member
Feb 26, 2011
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The toolkit thread seemed to imply you couldn't root and and then unroot without hiding the flash triangle, but that's what your other tool now does right? I'm still in the TMobile making up my mind process and I don't want a potential barrier to returning the phone (love the phone, still unsure about service).
 

JasonJoel

Senior Member
Apr 23, 2008
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No matter what I do, my phone continues to say it is 'modified'.

Originally I rooted w/the toolkit, installed a custom rom.

Today I ran CF-Auto-Root to restore the stock recovery, then ran triangle away. After rebooting, my phone still says modified.

Is there anything I can do to change this? Need to return the phone.

Jason
 

Chainfire

Moderator Emeritus / Senior Recognized Developer -
Oct 2, 2007
11,439
87,667
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www.chainfire.eu
No matter what I do, my phone continues to say it is 'modified'.

Originally I rooted w/the toolkit, installed a custom rom.

Today I ran CF-Auto-Root to restore the stock recovery, then ran triangle away. After rebooting, my phone still says modified.

Is there anything I can do to change this? Need to return the phone.
You really need to flash a full stock firmware again ... not sure if that is yet available.
 

675 Trip

Senior Member
Feb 17, 2010
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No matter what I do, my phone continues to say it is 'modified'.

Originally I rooted w/the toolkit, installed a custom rom.

Today I ran CF-Auto-Root to restore the stock recovery, then ran triangle away. After rebooting, my phone still says modified.

Is there anything I can do to change this? Need to return the phone.

Jason
This thread lists the exact steps you need to revert - if all images are available - http://forum.xda-developers.com/showthread.php?t=1494114
 

JasonJoel

Senior Member
Apr 23, 2008
1,783
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You really need to flash a full stock firmware again ... not sure if that is yet available.
Yeah, I think you are right. I think I'll just try to restore one of the near-stock ROMs and see if they'll be nice and take it back. If not, I'll just have to eBay it.

Love the phone, returning it because T-Mobile service is really bad where I am. So am going back to AT&T or Verizon.

Jason