How to Backup/Restore EFS and IMEI on your Galaxy S7 Edge

EFS and IMEI partitions are of great importance to all those who want to get the best out of their Android device. I am talking about situations such as rooting your device, flashing various custom images/ROMs, but something might go wrong. At the last reboot, you can easily end up in the situation of not being able to make any calls or connect to the Internet. Just imagine how frustrating might be to deal with such problems!

Let’s take the example of your Galaxy S7 Edge which is available for more than 6 months. The handset has been rooted, received a custom recovery, but do you always play safe? Even in such a case, you might end up with errors such as “Can’t connect to network” or “Unable to connect to the internet”, so what can you do to solve them?

In case of not knowing, the EFS partition stores the IMEI, wireless device MAC address, baseband version, product code, system ID and NV data. So, if the EFS partition gets corrupted during the flashing, you will face connectivity issues and the errors above are their result. You can’t even get the IMEI number and baseband information in About Phone section of your device. So, it’s a better precaution to make a backup of EFS and IMEI partitions.

Today, I am here to show you how to backup and restore EFS and IMEI partitions on Samsung Galaxy S7 Edge devices. It works on any variant possible, on every carrier, so it doesn’t matter if you own G935F, G935FD, G935X, G935K, G935L, G935S, as well as G935W8. However, in order to follow the procedure here described, your device must be rooted. If you haven’t rooted your Galaxy S7 Edge, you cannot follow the below tutorial (these guides might help you: How to Achieve Root on AT&T Galaxy S7 Edge, How to Root your Galaxy S7 Edge Exynos Model, How to Root Galaxy S7 Edge G935F with CF-Auto-Root).

And if you still wondering what causes this, then let me assure you that manually upgrading and downgrading firmware might be the cause, installing a custom ROM or mod might also mishandle system configuration, resulting in corrupt EFS, just as any kind of bad flashing, clash between new and old kernel systems can lead to the EFS data corruption and IMEI loss too.

How to Backup/Restore EFS and IMEI on your Galaxy S7 Edge:

1. First of all, you have to take Partitions Backup & Restore from the Play Store;
2. Open the app on your Galaxy S7 Edge phone;
3. When you open the app, you will see that EFS and RADIO are highlighted in yellow. Do not hesitate to select both of them;
4. Then click the download button. With the help of this step you will make a backup of the EFS folder;
5. To restore it, tap the three little dots at the top and select “Restore a partition”.

So, don’t you think that it’s pretty easy to backup and restore EFS partitions in Galaxy S7 Edge?