[TOOL]Backup/Restore EFS (IMEI) for SGNII

[chdiryoung]

GN2

Sent from my GT-N7105 using xda premium

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[eivelice]

hi, i was wondering if there might be anyone who could share a good efs back up of t889 note II.

i want to test it to my unknown baseband t889.

anyone please. thanks in advance.

 

[Formhault]

The efs.img the backup .bat did is 17.2MB in size. Is that okay?
I'm asking because when I backed up the EFS in my previous Samsung phones (S2, Note1), the file was 20MB in size.

EDIT : Pff... I re-did the operation and the file is now 20.480KB (20.0MB) in size.

 

[dynamic503]

I have backup to file EFS.img from SAMMY ROM
But Now I'm using APSO Rom, i can not restore EFS, my phone have no IMEI, the restore.bat say waiting device, while i enabled USB Debuging mode on my phone, and Device Manager say have Samsung Android ADB interface
What can i do?

 

[3to4]

I confirm this also works for N7105, or at least it seems to have worked. It created a backup file, although I have not yet have an occasion to restore.
I feel a little secure now. Thank you.

 

[yeminswe]

N7100 EFS Backup / Restore

Help to preserve and restore the image of EFS partition:
* Need Root

For Windows

* Extract from the archive, connect the device to the USB debugging mode (System settings/Developer options/USB debugging) and run selected .bat (depending on the backup or restore)
* To retain the image of efs.img must be in a folder with Restore_EFS.bat

For Linux
For MACOS

* Extract from the archive, connect the device to the USB debugging mode (System settings/Developer options/USB debugging) and run RUN_ME into terminal (double click), select option...


What is EFS, Why it is necessary to backup

Hi .. I extracted it but after clicking Backup EFS.bat , it only show waiting for device ,nothing happen .. I selected USB debugging , also have samsung driver , what's wrong with my phone ? Can you please tell me why I can't backup?

 

[Tdci]

Question

Hi all.

Is it possible to restore the efs image from another device (N7100)?

 

[dr.ketan]

Both of your device will be banned soon if you flash from other device, as well in almost countries it is illegal.

Sent from my GT-N7100 using xda premium

 

[Tdci]

I was asking for this because I am obliged to buy a new Note II...
The first one is already unuseful so I would like to give a try

 

[bandroid842]

Hi! So I just tried the Terminal method and it worked and did a backup. To be safe, I just tried to backup from my mac as well, but it didn't work, didn't find the file/directory. I'm running CM 10.1

 

[A.S._id]

Added

SAMSUNG_N7100_EFS_BACKUP_RESTORE_AUTOMATIC

 

[vishaldongare]

i hai had rooted my phone succesfully. i have already backed up efs. but then i was trying to install twrp on my phone.nd it didnt boot. so i flashed the stock rooted firmware of 4.1.2 through odin.But after that i am not able to get any network and my imei no. is also messed up. tried restore efs method but that too with no luck.I m really frustrated with this problem as it is a new phone. i have searched all over the net but efs restore is the only option i guess. please help !!!!

 

[dr.ketan]

May be you have flashed old rom. And backup you made was on newer rom.
If so then get multitool from my signature and flash new modem with that.

Sent from my GT-N7100 using xda premium

 

[vishaldongare]

May be you have flashed old rom. And backup you made was on newer rom.
If so then get multitool from my signature and flash new modem with that.

Sent from my GT-N7100 using xda premium

thank you sir for your advice,it worked and saved my day.And the tool you have created is just awsome!!!!!!!:good:

 

[ghaf85]

im lost my imei, baseband , no signal...
before that i backup my efs 1st...
but when i restore...its seem like not permanently work...
after i restart phone...imei , baseband and no signal see again...

can anybody tell me why???

 

[lrew9999]

I just lost my baseband on my s3... I cannot effort to lost in note2.. Thanks buddy!

 

[drgkt]

N7100 EFS Backup / Restore

Help to preserve and restore the image of EFS partition:
* Need Root

Is Busybox required for this?

 

[MohamedYousri]

Doesn't work anymore with 4.3 update N7100ZSUEMK3

 

[Gandicela]

May be you have flashed old rom. And backup you made was on newer rom.
If so then get multitool from my signature and flash new modem with that.

Sent from my GT-N7100 using xda premium

I used multi tool to restore modem, but imei and baseband is still unknown. Efs had been restored as well, still fails. Any help, please?

EDIT: Issue resolved. Went to Download mode and installed default stock ROM. My phone lost root, so I did root again. Thanks for the guide anyway. It was very helpful.

sent from my GT-N7105 on SlimRom Build 2.2 Official

 

[Sandro8771]

Can anyone list out complete contents of a efs backup.All folders and its values.

Did a backup in August of this year, my very first.Thought I lost it when I couldn't locate it to enable imei/sn/service state and mobile network not connected issues after:

1) Trying out CM11
2) Trying out SupremeBean

and then flasing back to stock 4.1.2 not my actual backup.Random stock firmware ends with XSE.

Eventually used guide from dr.ketan and fellow xda member sora9009 to flash modem mf1 and get back a working device.
However certain expects of corrupt device information remains:

Imei-back to original

S/N-back to original

Service state-in service(what a relief!!)

Mobile network state-not connected (as it was when corrupted)

But I am able to make and receive calls.

My efs backup consist of 14 items:

bluetooth folder-/bt_addr 0kb

drm folder-/play ready folder-/0002.PRV 0kb/DXDeviceKey 0kb/DXSecureDB 7.1kb/DXSECUREDB-secondary 8.3kb and NVS 0.1 kb

factory app folder-/baro_delta 0 kb/batt_cable_count 0 kb/earjack_count 0 kb/epen_count 0 kb/factorymode 0 kb/fdata 0 kb/hist_nv 0 kb/hw_ver 0 kb/keystr 0 kb/prepay 0 kb/serial_no 0 kb and test_nv 0.3 kb

imei folder - mps_code.dat 0 kb

wifi folder - (empty )

00000000.authtocont 0.1 kb
efs.img - 20 mb
efs.tar - 2mb
gyro_cal_data 0 kb
h2k.dat 1.1 kb
nv_data.bin 2 mb
nv_data.bin md5 0kb
nv.log 2.3 kb
wv.keys 0.2 kb

Could someone make a comparison to what they have with mine.The efs backup was done via TWRP recovery and as you can see there is no .bat file anywhere.





Sent from my GT-N7100 using xda premium