How to Backup and Restore EFS Partition on any Android device

EFS is a critical partition on your Android device where essential data such as the IMEI number, Mac address of Wireless devices, important internet files, product code, and more are stored. Without this data, you won’t be able to use your Android phone, so it’s crucial to keep this partition safe and backed up. If you’re interested in flashing custom ROMs and modded apps, it’s especially important to secure this EFS partition. This guide will show you how to back up and restore the EFS partition on any Android device. Let’s dive right into the article and get started!

What is EFS Partition?

The full form of EFS is Encrypting File System which is hidden deep inside the core of Android’s internal file system. As mentioned above, this partition saves all your important data on your phone like the IMEI number, mac address of all the wireless devices, important files from the internet and product code, MEID, and ESN, etc. This makes it important to keep this data secured in order to make your phone working again if things go south while flashing custom ROMs or apps. The EFS partition can also come handy when you have a SIM-locked smartphone because the registered phone number is also stored in this EFS folder.