[EFS-cwm-Restore] Restore zip for your EFS

civato · Jun 20, 2013

Story behind this zip file:

I messed up my tablet and I could only get into download mode , meaning I could flash a insecure boot.img and custom recovery.
I noticed that my EFS partition was erased when I entered a stock recovery, I got all kind of EFS error messages in recovery.

At first I tried to restore my system with a original ROM ODIN package but that doesn't restore your EFS. So no luck and still stuck in a bootloop.
So what to do? No adb , no EFS backup on my internalSD , I couldn't get acces to my internal SD.

I google around and I didn't find anything to restore EFS from within recovery or Odin. I didn't have a EFS.img backup on my internalSD so the emwo recovery was no help.

I do have a EFS backup that I took with EFS pro.
That generates a .tar and a .img file.
So I made myself a update package that I could flash from cwm. As I made the recovery I knew in what partition EFS is stored so that was easy.
This is the updater script , it should work on GT-N51... (10, 00, 20) as they all store the EFS in this partition.

Code:

show_progress(0.3,72);
ui_print(" ");
ui_print("1. START INSTALLATION");
package_extract_file("EFS.img", "/dev/block/mmcblk0p3");
set_progress(0.99);
ui_print("------------------------------------------");
set_progress(1.0);

I renamed the EFS image backup that I took with efsPro to EFS.img and dropped it in the zip I made with the updeter script.

Flashed it with cwm and voila, running again without any problems.

SO in the attachments is the zip .

Open it with 7zip or winrar , drag and drop your EFS.img (needs to be this name) into the zip where the EFS-dummy text file is. put it on your externalSD , boot to recovery and flash it.

So I hope this helps the people out that come into the same situation as I did.

arminrr · Jun 22, 2013

Thanks for the zip, I have my EFS backup, but I didn't know what to do if I had this problem!

mattyyey · Oct 6, 2013

You are a life saver!!!

THANK YOU VERY MUCH

Long story short, I was like you. my battery died, and for no apparent reason, I couldnt boot. I had download and recovery but no matter what rom i used no boot. Then i noticed in the logcat it was getting stuck on network initialization and also that twrp couldnt mount the efs partition.

I was looking for a way to restore the efs using adb sideload when i found this, popped in my efs backup and volia!

o yea i'm on the GT-i9300 (s3) but it worked like a charm! deffo keeping a copy of that zip just in case.

android addicts · Nov 24, 2013

I have a .tar.gz efs backup compressed file. So how do I use it to flash via CWM?

ephidor · Feb 19, 2014

android addicts said:
I have a .tar.gz efs backup compressed file. So how do I use it to flash via CWM?

open it using 7zip or winrar and you will find the efs.img inside

copy it and put in the zip file

kerko · May 23, 2014

no luck for me

ephidor said:
open it using 7zip or winrar and you will find the efs.img inside

copy it and put in the zip file

It keeps on returning to recovery..

k9time · Jun 1, 2014

Anyone with a link to this efs pro? I fint efs in app store with lots of problems but no efs pro. I buy my apps so not trying to get around that but which app? Thanks

Sent from my GT-N5110 using XDA Premium 4 mobile app

---------- Post added at 11:48 AM ---------- Previous post was at 10:48 AM ----------

k9time said:
Anyone with a link to this efs pro? I fint efs in app store with lots of problems but no efs pro. I buy my apps so not trying to get around that but which app? Thanks

Sent from my GT-N5110 using XDA Premium 4 mobile app

Never mind. ? Found it. Thanks civato..

Sent from my GT-N5110 using XDA Premium 4 mobile app

emilutzzu · Mar 25, 2015

OMG...thankkkkks so much....

TheDroidsYoureLookingFor · Apr 25, 2015

Anyone have any idea how to proceed if you don't have a backup image of "EFS.img"? Luckily, I am able to boot and run fine, but I understand fixing the EFS will also fix my GPS. Thanks in advance.

Sent from my GT-N5110 using XDA Free mobile app

raac · Dec 17, 2015

Anyone can help me to flash my EFS using this method? MY note 4 N 910G has damaged EFs and showing unknown basband and null IMEI. Phone rebooting every minute and canot restore EFs in normal mode. My EFS backup has 4 files. Need to restore all this files with flasheble zip. (efs.img.ext4, mdm1m9kefs1.bin, mdm1m9kefs2.bin, mdm1m9kefsc.bin)

Elesio badiable · Apr 19, 2016

arminrr said:
Thanks for the zip, I have my EFS backup, but I didn't know what to do if I had this problem!

can you pls upload your n5110 efs backup in 4 shared mediafire or mega i down back my efs so i brick my phone need help ls.. :crying::crying::crying::crying::crying:

preetam1989 · May 19, 2016

Problem!!!

I flashed it via TWRP Recovery It shows that INSTALLATION SUCCESSFUL but after my phone boots up. I tried to found the EFS folder it only contains bluetooth folder. but I had so many files and folders in my EFS Backup.img file. Why It could not work.

MrJojo · Jan 29, 2017

Hi Please take a minute to reply

civato said:
Story behind this zip file:

I messed up my tablet and I could only get into download mode , meaning I could flash a insecure boot.img and custom recovery.
I noticed that my EFS partition was erased when I entered a stock recovery, I got all kind of EFS error messages in recovery.

At first I tried to restore my system with a original ROM ODIN package but that doesn't restore your EFS. So no luck and still stuck in a bootloop.
So what to do? No adb , no EFS backup on my internalSD , I couldn't get acces to my internal SD.

I google around and I didn't find anything to restore EFS from within recovery or Odin. I didn't have a EFS.img backup on my internalSD so the emwo recovery was no help.

I do have a EFS backup that I took with EFS pro.
That generates a .tar and a .img file.
So I made myself a update package that I could flash from cwm. As I made the recovery I knew in what partition EFS is stored so that was easy.
This is the updater script , it should work on GT-N51... (10, 00, 20) as they all store the EFS in this partition.

Code:

show_progress(0.3,72); ui_print(" "); ui_print("1. START INSTALLATION"); package_extract_file("EFS.img", "/dev/block/mmcblk0p3"); set_progress(0.99); ui_print("------------------------------------------"); set_progress(1.0);

I renamed the EFS image backup that I took with efsPro to EFS.img and dropped it in the zip I made with the updeter script.

Flashed it with cwm and voila, running again without any problems.

SO in the attachments is the zip .

Open it with 7zip or winrar , drag and drop your EFS.img (needs to be this name) into the zip where the EFS-dummy text file is. put it on your externalSD , boot to recovery and flash it.

So I hope this helps the people out that come into the same situation as I did.

Will this method work for stock recovery too? thanks

elizondo · Feb 9, 2018

i know this is old but i find this video that explain how to recovery the efs bad i try and works:

https://www.youtube.com/watch?v=Y-LZvVLEC5o

adb shell
su
cd /dev/block/platform
cd dw_mmc
cd by-name
ls -l

(copy de code of block and put in .....)

example: mmcblk0p3

mke2fs /dev/block/......
mount -w -t ext4 /dev/block/.......
reboot

deathwish03 · Apr 23, 2020

can any one uploda efs.img for n5100.. tia

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[EFS-cwm-Restore] Restore zip for your EFS

civato

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arminrr

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