Open the app and go to dev/block directory and note down the exact path of EFS data files.
#INSTALL RECOVERY USING TERMINAL EMULATOR INSTALL#
Install a root file browser app: The app was not found in the store. In case the terminal Emulator method (using the above commands) does not work for you, it might be due to the location of EFS partition on your phone. To restore EFS on external SD Card: dd if=/storage/extSdCard/efs.img of=/dev/block/mmcblk0p3 bs=4096 To restore EFS on external SD Card: dd if=/storage/sdcard/efs.img of=/dev/block/mmcblk0p3 bs=4096 Launch the app and type the following command depending on the location of the EFS.img file:
Now here is how you can restore the backed up EFS using Terminal Emulator: On terminal (or command prompt) window, write fastboot boot , e.g.You can find this file as “EFS.img” on your device. If everything goes fine, your EFS data will be backed up to the internal or external storage of your device.ĭo not forget to save the backed up data to your computer or a cloud storage for safety and future use. Please note that all commands are case sensitive and even a minor mistake will hider the successful backup. To backup EFS on external SD Card: dd if=/dev/block/mmcblk0p3 of=/storage/extSdCard/efs.img bs=4096 To backup EFS on external SD Card: dd if=/dev/block/mmcblk0p3 of=/storage/sdcard/efs.img bs=4096 When you see the Terminal Emulator box, type the following command: Open the app and grant SuperUser permission when you are prompted to do so. Here is how it can be doneĭownload and install Terminal Emulator app on your phone: The users who own a Samsung Galaxy device with root access but no custom recovery can use a free app called Terminal Emulator to backup and restore EFS on their device.