How to root AT&T Samsung Galaxy S3 i747 with CWM

Galaxy S3 CWM

We come bearing really good news – the Galaxy S3 AT&T was finally released so you are only a tutorial away from finding out everything you need to know regarding the procedure that helps you root it via the CWM-based Recovery.  However, before you proceed with it – I must warn you that this guideline is generally addressed to all of you out there who are pretty familiar with all this procedure – so if you are an advanced Android user then this article is for you and for you only. You must first of all make sure you check out all the instructions that you need to tick in order to proceed with the rooting. There are different pre-requirements steps that you need to take and they are mandatory as they are key to a successful procedure. If you are not comfortable with what you read and with all the steps involved here, then it would be best to take your time and linger upon the decision of continuing with this. This is a very complex process that might even result in a failed attempt of your device, so this is something you want to avoid for sure. You really need to follow all the steps presented exactly as such – and be aware that even if you flash a single wrong file you could end up with a bricked phone, and we don’t want to be responsible for this.

So just to avoid any wrong doing – just make sure you read all of the below to get yourself updated to all the necessary pre-requirements.

To make sure we give you the full picture of all of this – do not think that to root the AT&T Galaxy S3 is a very difficult thing to do, but, taking into consideration that there are many steps that require expertise, knowledge and attention – it is only indicated for proficient Android customers to go ahead with this update, as previously mentioned above. If you are wondering who is the great creator of this root – I will clarify right now – we are again talking about the  XDA forum members as usual. They have taken the matter into their own hands and have provided us with a method to use in order for us to be able to access all the system’s files if we want to focus on enhance phone usage, or if we want to simply get root access and also check out and benefit from having more performed Android apps at our disposal (that are normally solely accessible to  rooted devices) or even when it comes to custom ROMs and installing them.

So before we start looking into the exact steps,  just make sure you read all of the below to get yourself updated to all the necessary pre-requirements.

  • you are only to use the tips provided in this article for the AT&T variant of Galaxy S3 (and only with the AT&T variant of Galaxy S3)
  • As the instructions below are solely developed to work to root the AT&T variant of Galaxy S3 (and only with the AT&T variant of Galaxy S3), they shall not work on any other type of device, so you are better off not to even try to flash these files on any other device.
  • You will have to make sure you install CWM Recovery files. 
  • What this will help you with is that you shall now befit of an entire backing up system of all the data contained in this system, so you can easily access it again in the unfortunate scenario that the process goes wrong along the way.
  • You will also have to turn on the USB Debugging mode – so just check this on your smartphone and you can proceed with the next steps.
  • You must also pay attention really carefully to the battery percentage of your device and make sure you do charge the phone’s battery up to a minimum of 70% level, as we need to avoid its drainage while we finish the process, you can not have your phone turned off while the operation is ongoing.
  • Also – no need to mention once more – but just to be sure – you have to follow all these steps accordingly and don’t miss even one. Check the steps listed in the tutorial guide one by one otherwise you can end up not successfully applying this root on your Galaxy S3 AT&T device.
  • At this stage you are the only person responsible for applying a successful root on your phone, so make sure you have ticked all the right boxes before you start performing the steps. It is also important that you should have the important data saved up before, as you might encounter data files losing during the root and you should avoid losing it.
  • Now this has been all there is to know regarding the criteria you must meet before applying the steps you are about to find out. You have to read them carefully in advance and make sure you apply them exactly as such, otherwise the skipping of any of the steps presented might lead to an unsuccessful operation, or even to a bricked phone – which is worse. If you do happen to have any problems with the steps presented, you can give us a heads up and we shall try to detect what the issue has been and try to sort it out.

As we are done with all the theory – please now check the actual steps you need to take to have the AT&T Galaxy S3 using only CWM Recovery rooted.

Steps to ensure the rooting of AT&T Galaxy S3 using only CWM Recovery:

  1. First of all – you shall have to access and get the root CWM Super user .zip package so just make sure you get it, and as soon as you have downloaded it you also need to make sure you do not proceed with its extracting, but just store it on your PC.
  2. Then you need to plug your deviceinto the PC and then move the ‘cwm superuser’ zip file so that it can be stored to the phone’s internal sdcard. As soon as you see that the transfer is finished, just unplug the device from the computer and you are ready to go.
  3. Then please do turn the device off and then open it into CWM Recovery. You shall manage to do so if you press and also hold the ‘volume up’ and  ‘home’ and ‘power’ buttons down. You will have to be patient and relax up to the point when the  CWM Recovery mode shall be displayed.
  4. Very important to highlight – As soon as this Mode is activated, you need to select ‘install zip from sdcard’ . Going further as instructed on the screen, you need to then choose the  ‘choose zip from sdcard’ or ‘choose zip from internal sdcard’. You will have to therefore look for the CWM SuperUser zip file, so when you find it just click on it.
  5. You also have to give the thumbs up for this process to be installed and it is going to take a while till the flashing process is done too.
  6. But as soon as  the implementation of CWM SuperUser is over with, you need to immediately return to the primary recovery screen.
  7. Please make sure to select ‘reboot system now’ and then take your time and simply until your device is going to open up into the home screen
  8. What you need to do next is to open Google Play Store on the Samsung Galaxy and look to find the ‘BusyBox’ app. The alternative is to implement this app straight by going to the Google account. Just make sure you take your time while doing this step.
  9. Now all you need to do is to look for the BusyBox app, its free version and give its launching.
  10. You will be asked to give permission to have this root applied, so just make sure you give the confirmation before proceeding to the next steps.
  11. We are almost done – and if you click on the X button you can go ahead.
  12. Again – you will be asked for the confirmation that you are ok with the BusyBox’s application attempt to do a scanning on your device, so you will have to give this.
  13. Now just go and select the Install for BusyBox Free app to proceed with the entire change and update. It will take a little while for the procedure to be completed, and as soon this is done – you have to just turn the the app off as a final step, and you have now reached your destination so to speak.

Congratulations to all of you – you have managed to successfully root your device, so thanks for following all the steps correctly till the very end.

I do hope that you have been able to follow the steps accordingly and that you have performed a successful procedure yourself. As proof – you should now indeed be able to flash newly available custom ROMs and any other files that you think that will bring updates to the entire usage of your device, for that matter. The choice is up to you now and we are happy to have been a part of this. It has not been an easy task to teach you – but as mentioned, if everything done accordingly – a lot of advantages on your side shall get out of it.

The Galaxy S3 AT&T should now be different and in order to check if the root was successfully performed just search for the BusyBox app. It should be displayed in the app drawer. Once you get this confirmation, you have the green line to getting all those custom ROMs and also reach out to available Android’s sub-system files and by using them you shall automatically contribute to an upgrade of your overall performance of your phone. To be more specific, what you can now get exactly are WiFi tethering in terms of connectivity,then also a CWM Manager and a ROM one. Furthermore, we also have ROM Toolbox Lite even a Titanium backup and not only, the list can go on and on. But they do have one thing in common  - and that is that they shall really make a difference and  of you want to experience the newly boosted experience of their Galaxy S3 device, then we highly recommend you give this procedure a go and follow the necessary steps to perform this root.

But in the negative scenario when you suspect that you have not successfully managed to apply the root, we would highly suggest that you should restart performing all the steps once more- and apply the entire root again until you manage to flash all the required files. Hopefully this is not the case, but if it does happen to be – please let us know and we will look into it and see if there is any solutions for this.