Where is efs directory android

One of them is an Encrypted File System i. It is related to the networking and communication within Android phones. Hence, for any reason, if this EFS data gets corrupted then your device will be completely useless and will no longer be recognized by your carrier. Your IMEI will become null. There are many reasons because of which your EFS data can get corrupted some of them are listed below:. To avoid any unpleasant situations mentioned above, it is necessary to take a complete backup of EFS data.

Try this at your own risk. I deleted efs folder, wiped and formatted whole tablet. My IMEI became ….. I bought one app from unlocksamsun……. I flashed ROM. Is it possible to repair somehow?

I also have a problem with my Galaxy duos I deleted the efs folder and now have got this yellow text on a transparent window with information such as PDA,SCS, ….. How do I revert back to normal. I dont have the efs folder backup. I have a backup of my EFS but due to tampering with that folder, my phone wont start anymore So is there anyway that i could fix this Issue? I have a Samsung Galaxy S2 my phone has been messed around with over time ie somebody in China managed to make my phone sim free, i dont know how?

It seems to me that the phone requires it to be rooted, I am a beginner newbie to how to do this, and have tried hard to finding info how to do this make sim free.. My phone was originally with 3 network in UK My phone is now rooted Cynamod , i have tried various apps online which claim to unlock phones but with no luck. When i have read about various codes online to input numbers into the phone keypad for information about the phone e.

But this number does not match the IMEA number which is behind the battery in the phone!!!! I dont know what this does?

Please give detailed answer if you can i am a newbie thank you.. I installed some custom roms on my phone I S4. What can I do to stop this annoying error?

Restore the EFS folder If, on the other hand, you want to restore the EFS folder using a backup, you just have to do the process in reverse. Similar items. How can I record the screen of my Android mobile without root April 7. How to use the SD card as internal memory on my Android without being root April 7. How to activate and deactivate geolocation on your Android and iOS mobile phone? Step by step guide December 30, How to update the Android software of a phone or tablet to the latest version?

April 7. If the answer is no, do not worry. This post will guide to backup or restore EFS folder on your Galaxy device, no matter which Galaxy version you use because the steps are same for every android based Samsung devices.

You have to use an app developed by XDA developers, and this app can be installed on any Samsung device. Therefore, you can easily backup the EFS folder, that means recovery images and custom ROMS can be installed on your device easily without worrying whether you will have network access or not afterwards.

Many of us may not know what EFS folder contains. Well, this folder contains many important information including the IEMI number. If this happens, there will not be any network connection means the smart phone will be of no use.