EFS Backup from device (without PC) [Update 11Feb14]

[jrenascimento]

Good afternoon!
Well I solved the problem by copying the efs folder that was backed up to the root folder. I know you can not be allowed via root explorer to delete the old efs folder, but what I did was delete the content within the old efs folder . After that I copied the new efs folder to, then root explorer merged the contents of the new folder with the contents of the old folder, as the old folder was empty, the new files were into it.

 

[hooliganx]

Good afternoon!
Well I solved the problem by copying the efs folder that was backed up to the root folder. I know you can not be allowed via root explorer to delete the old efs folder, but what I did was delete the content within the old efs folder . After that I copied the new efs folder to, then root explorer merged the contents of the new folder with the contents of the old folder, as the old folder was empty, the new files were into it.

ahn?




NT2*Moon.v9.DMF2*Perseus.36.3*TWRP*DMF1*ExtSd32Gb

 

[ValenteL]

Good afternoon!
Well I solved the problem by copying the efs folder that was backed up to the root folder. I know you can not be allowed via root explorer to delete the old efs folder, but what I did was delete the content within the old efs folder . After that I copied the new efs folder to, then root explorer merged the contents of the new folder with the contents of the old folder, as the old folder was empty, the new files were into it.

Bom dia!
I made once like this on a NOTE 10.1 N8000 and solved my case also.

Valente

 

[glevitan]

Just to report, I lost my IMEI last evening and just could solved it this way. :good:

 

[Formhault]

Just to report, I lost my IMEI last evening and just could solved it this way. :good:

How did you manage to lose it?!

Sent from hyperspace

 

[glevitan]

How did you manage to lose it?!

Sent from hyperspace

I flashed the stock firmware (Movistar Argentina) with Mobile Odin. Did not change anything else...maybe the problem was doing a dirty flash, not sure thou but wanted to keep root to reset counter.

As my device is rebooting or turning off by itself from time to time, I want to keep it as stockish as possible in case I experience SDS and need to go to service centre.

 

[haybill]

Many thanks for this guide--I have made EFS backups using apps like Andromizer, and other, but this way seems very useful, thanks Dr. K.

 

[xenon92]

I successfully backed up my efs to a *.img on my Note 2 using the Mobile Terminal method. Thank you for the guide.

I also happen to own a Galaxy Grand i9082 and i wanted to backup the efs folder using Mobile Terminal method and make a *.img of it

dd if=/dev/block/mmcblk0p3 of=/storage/extSdCard/efs.img bs=4096

.

I was wondering if same line of code will work for Galaxy Grand too? Is the block "mmcblk0p3" for efs in all phones?
I googled and saw that this efs block differs for different phones. If so, how can i figure out what to replace "mmcblk0p3" with to successfuly backup my efs on Galaxy Grand?

 

[dr.ketan]

Yes it varies with device, you need to explore pit file to know efs partition block.

Sent from my GT-N7100 using xda premium

 

[xenon92]

Yes it varies with device, you need to explore pit file to know efs partition block.

Sent from my GT-N7100 using xda premium

This would be my last post regarding Grand and not Note 2.

I figured out my efs block and i think i have successfully made a *.img out of it. It is again 20MB in size just like it was when i did it on Note 2.

The terminal output was exactly like the one you have in your OP. Same number of bytes transferred. Same number of records in/out etc.
The only difference was that my transfer rate was 11 times as compared to the 5th screenshot and it completed on 0.9 seconds. (that doesn't matter, i guess!)

How to be sure about what i did was correct and that i have successfully backed up the required efs partition?

 

[dr.ketan]

Google img unpacker and check by unpacking efs.img. It can be easily identify by contents of it.

Sent from my GT-N7100 using xda premium

 

[xenon92]

Successful.

Thank you for your help.

 

[UtkarshGupta]

Hey Dr.ketan,
Just noticed that on aosp, the command should be sdcard1 instead of extsdcard. There is difference between mounting names in aosp and touchwiz.

Sent from my GT-N7100 using XDA Premium 4 mobile app

 

[dr.ketan]

Sdcard1 is for int SD card or ext sdcard?

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[mahmoud_m_m]

Sdcard1 is for int SD card or ext sdcard?

Sent from my GT-N7100 using xda premium

Sdcard1 for external memory as in AOSP roms the internal is 0 and external is 1.

I did it myself at first i didnt notice that i have to change that section but when i change it to to sdcard1 it worked and saved in the external.

Sent from my GT-N7100 using Tapatalk 4

 

[dr.ketan]

Thx, will update op soon

Sent from my GT-N7100 using xda premium

 

[JuNyA8971]

Hey Dr.ketan,
Just noticed that on aosp, the command should be sdcard1 instead of extsdcard. There is difference between mounting names in aosp and touchwiz.

Sent from my GT-N7100 using XDA Premium 4 mobile app

Thanks for the tip. I didn't realize that it was sdcard1. Finally backed up my efs. Many thanks!

Sent from my GT-N7100 using Xparent BlueTapatalk 2

 

[justkiddinghere]

I flashed miui yesterday am not getting signal help

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[bandroid842]

I can confirm that this tool is not working on CM 10.1. The code needs a different path

 

[dr.ketan]

Read few post above and try that.

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