Each time you decide to update your Samsung Galaxy S3 with a custom ROM firmware, or with an unofficial port of the Android system, you can end up in losing the data which is stored on its internal storage memory. Unfortunately, not only the usual data, like contacts, messages, call logs, or market apps, might get wiped out as the internet setting or the EFS folder might get erased too. So, for avoiding the unpleasant situations, I will teach you how to backup and restore the EFS from your SGS3 by using the one-click method. As usual, you have it all explained in an easy to follow step by step guide, so let’s get started.
But, why to backup the EFS? Well, the EFS store the IMEI and allow your handset to establish the internet connection, so in case it gets erased your phone will no longer be able to use the Internet connection. So, if you have recently updated your Galaxy S3 and cannot use the internet connection, then probably the EFS folder was wiped out. That’s why you need to previously backup it so that you can easily restore the same when needed. For those who cannot apply this, the only solution is to downgrade to the stock ROM, or to apply an official update released by Samsung and suitable with the S3.
There are many ways for learning how to backup the EFS, today we will explain the one-click tool variant. For this you will have to use a Windows powered computer and the phone USB cable as you will connect the S3 with the PC. Furthermore, this procedure implies in having a rooted smartphone. If not you should go and first gain root access and remove the factory restrictions. Be aware as by ding this the warranty will get void. I recommend you to search through our how to section for a suitable step by step guide from which you can find everything you need to know about the root operation. Then, return here and resume the rest of the guide.
Remember that it is recommended to backup all the data from your Galaxy S3 (before updating or making changes into its system), not only the EFS folder. It’s important to save all of your personal info as it probably get corrupted. For a full backup you can download SMS apps for Android, call logs backup and restore apps, sync with Google for saving the contacts or use a custom recovery image (like CWM recovery) for backing up the current ROM.
Just before completing the steps you must deactivate the security tools from the computer and from the phone as these programs might interrupt the backup operation, by stopping the one-click tool. Then, enable the USB debugging option on your S3 (you can see how during the steps) and charge the battery of your smartphone for ensuring that it will not get turned off in the middle of the process.
Take note that the present tutorial can be applied and should be applied only for the Samsung Galaxy S3 and not on any other Android powered handset. This method was first developed and tested by those of xda-developers so we have them to thanks for this opportunity. Now, you can finally head and complete the proper steps. Read all carefully and don’t perform things by yourselves. The process is easy and completing it will only take a couple of minutes from your time therefore let’s begin.
How to Backup and restore Galaxy S3 EFS Using One-Click Method
- First of all, on your computer, download Samsung KIES for installing the proper drivers for the S3.
- Then, on the same computer download the EFS backup and restore app from here.
- You must get the .rar file.
- Extract the file.
- On your S3 the USB debugging option must be enabled. Go to Settings -> Developer and ensure that the USB debugging option is checked.
- Now, connect the device with the computer by using its USB cord.
- Once the handset connected, go to the folder where you extracted the downloaded file and click on the “Backup_EFS” executable.
- Just follow the prompts.
- Your EFS will be saved in the same folder as the tool, in the .img format.
- If you want to restore EFS all you have to do is to click on the “Restore_EFS” executable, follow the prompts again and that’s it.
So, there you have it. That was the one click method from which you can easily backup and restore the Samsung Galaxy S3 EFS. You can now safely consider in updating your phone with a custom ROM firmware as your data and EFS is in safe hands. That was all for today, but stay close as we will bring other procedures from which you can learn how to save the EFS, ones that doesn’t require root access. Feel free to share your opinions and impressions with us by using the comments area from below.