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First what is efs-folder?
This is a very sensitive system folder that contains Phone-specific information such as the IMEI (encrypted in the nv_data.bin), wireless devices MAC addresses, product code (also in the nv_data.bin), and much more. Often users trying to change product codes or trying to unlock the mobile will end up corrupting data in this location.
"xda"
So I want to make a backup on my Samsung Galaxy Tab,Samsung Galaxy S and Galaxy Y with Rootexplorer.(easy way)
Created a .tar file works on my Tab and Galaxy S, but on my Galaxy Y the folder is empty!!! flashed my Galaxy Y a few times with customs roms.
So whats going on
Is there anyone out there with same problems???
Phone calls works fine on my Galaxy Y, IMEI still there but the efs folder is empty, flashed a few times to stock but still empty.
Phone rooted tryied a few version with Rootexplorer and Terminal Emulator.
demir02 said:
First what is efs-folder?
This is a very sensitive system folder that contains Phone-specific information such as the IMEI (encrypted in the nv_data.bin), wireless devices MAC addresses, product code (also in the nv_data.bin), and much more. Often users trying to change product codes or trying to unlock the mobile will end up corrupting data in this location.
"xda"
So I want to make a backup on my Samsung Galaxy Tab,Samsung Galaxy S and Galaxy Y with Rootexplorer.(easy way)
Created a .tar file works on my Tab and Galaxy S, but on my Galaxy Y the folder is empty!!! flashed my Galaxy Y a few times with customs roms.
So whats going on
Is there anyone out there with same problems???
Phone calls works fine on my Galaxy Y, IMEI still there but the efs folder is empty, flashed a few times to stock but still empty.
Phone rooted tryied a few version with Rootexplorer and Terminal Emulator.
Click to expand...
Click to collapse
The /efs partition is encrypted and hidden in SGY
Is there a way to save it??
I tried this tool a for a minute
http://forum.xda-developers.com/showthread.php?t=1308546
backup .tar and .img failed
anyone found a solution how to backup the EFS?
Have tried several tools and backup was always empty
MrButcher said:
anyone found a solution how to backup the EFS?
Have tried several tools and backup was always empty
Click to expand...
Click to collapse
There's a good chance, that /dev/bml15 is the efs or equivalent partition.
Sent from my SGSII using Tapatalk 2 & Swype
(I've found this old topic, which is not answered yet)
After examining a lot of bml15 dumps I conclude, SGY and companion does not have EFS folder, but have let's-call EFS partition, which is actually bml15 partition.
I'ts not so easy to loosing your EFS data (eg IMEI), but using Odin, accidentally you can (by clicking wrong option)
For safety reasons it's a good advice to install Galaxy Toolbox and have a bml15 backup in a safe place!
Try efs pro ...software backup u efs data ...
Sent from my GT-S5360 using xda premium
Doky73 said:
(I've found this old topic, which is not answered yet)
After examining a lot of bml15 dumps I conclude, SGY and companion does not have EFS folder, but have let's-call EFS partition, which is actually bml15 partition.
Click to expand...
Click to collapse
/efs , however, does exist on SGY, but is empty
Hey!
I am new here on xda.
I flashed a lot of custom roms on my SGY.
Finally, i saw that my efs was empty.
The IMEI was still correct, but the phone didn't detect any sim card.
I tried restoring it to the stock firmware, but the results were the same.
I flashed the CSC, PDA, etc for my country but the phone didn't detect any sim card.
Please Help.
sarthakmital8g said:
Hey!
I am new here on xda.
I flashed a lot of custom roms on my SGY.
Finally, i saw that my efs was empty.
The IMEI was still correct, but the phone didn't detect any sim card.
I tried restoring it to the stock firmware, but the results were the same.
I flashed the CSC, PDA, etc for my country but the phone didn't detect any sim card.
Please Help.
Click to expand...
Click to collapse
Did you flash the firmware from my firmware thread?
The efs partition in a galaxy y is not mountable and is untouched
Flashing a rom will not change it
The only reason you would loose imei is if your baseband didn't match the kernel ramdisk ril file but you can just flash the correct ril but this only effects custom stock based roms based on new firmware whilst you are using an old kernel ramdisk
Anyway - to cut a long story short - flashing a rom has no effect on efs partition
Goto my firmware thread and flash the firmware from there
If it doesn't work after that check the sim card works - Remove it & put it back in again & check there isn't a problem with your operator
http://forum.xda-developers.com/showthread.php?t=2568853
Is theere any tutorial or way to perform this?
If you've got a Custom Recovery (CWM, TWRP etc.) you can backup the EFS partition that way or use this application - http://forum.xda-developers.com/showthread.php?t=1308546
Hi,
i try make backup may EFS partition AT&T Stock ICS (phone rooted, busybox installed). When i try EFS Professional v2.0 i stil have information "unable read PIT file". I make backup with GalaxSim Unlock 1.02. Now i have 3 files (down below). Do this is good EFS backup files?
Do i can from this files restore my EFS partition (IMEI etc.). If yes, what i must to do?
greetings
kamykkamyk_pl said:
Hi,
i try make backup may EFS partition AT&T Stock ICS (phone rooted, busybox installed). When i try EFS Professional v2.0 i stil have information "unable read PIT file". I make backup with GalaxSim Unlock 1.02. Now i have 3 files (down below). Do this is good EFS backup files?
Do i can from this files restore my EFS partition (IMEI etc.). If yes, what i must to do?
greetings
Click to expand...
Click to collapse
Use this version of EFS pro, newer versions don't play nicely with our phones
If you make a standard nandroid backup, but skip the data backup, you can restore your EFS anytime.
Sent from my SGH-I927 using Tapatalk
kamykkamyk_pl said:
Hi,
i try make backup may EFS partition AT&T Stock ICS (phone rooted, busybox installed). When i try EFS Professional v2.0 i stil have information "unable read PIT file". I make backup with GalaxSim Unlock 1.02. Now i have 3 files (down below). Do this is good EFS backup files?
Do i can from this files restore my EFS partition (IMEI etc.). If yes, what i must to do?
greetings
Click to expand...
Click to collapse
Hi,
Of course you can use GalaxSim Unlock to restore your EFS backup. The backups made by other tools for this device will contaion the same data. By default, it will restore the EFS folder. If you check "advanced mode" in settings, you can chose to restore the whole partition.
Unfortunately, I've had a look at your data : you seem to have lost your stock EFS data (I suppose you IMEI might be wrong). Unfortunately if you don't have a backup made before you lost it, you can't do much to restore your imei.
spocky12 said:
Hi,
Of course you can use GalaxSim Unlock to restore your EFS backup. The backups made by other tools for this device will contaion the same data. By default, it will restore the EFS folder. If you check "advanced mode" in settings, you can chose to restore the whole partition.
Unfortunately, I've had a look at your data : you seem to have lost your stock EFS data (I suppose you IMEI might be wrong). Unfortunately if you don't have a backup made before you lost it, you can't do much to restore your imei.
Click to expand...
Click to collapse
Hello,
i buy my I927 from Singapure in september 2013, they have original Stock 4.0.4 ROM and was unlocked. After buying i root device and now (3 days ago) i flash Omni Rom 4.4 (KiteKat). I backup my EFS partition before i falsh OMNI Rom, also my backup ist from original stock AT&T 4.0.4 ROM
hi
Using TWRP, I try to restore a backup
(which is on a SD) from a Samsung TAB S (running LineageOS Feb 2020) on a second Samsung TAB S (running android 6.0.1, some unknown ROM) . I just want to do a clone.
When inside TWRP on the second Samsung, I can find the backup folder on the SD. Unfortunately I can't go down to the sub-directory from "3204c6da680031ed", it just stuck there. No partitions show where I can select to restore, please see the attachment
Have you seen this before? is this possible such task?
The backup file structure is: /TWRP/BACKUPS/3204c6da680031ed/2020*lineage*chagallwifi-userdebug*
NB: when trying restore on the first Samsung device, everything OK, I can go down to the subdirectoty and choose which partitions I will restore.
Is this because the backup is bound to this specific device only? if yes, TWRP team is this possible to change this behaviour.
No replies in over 2 years? Is this not a good way to clone a tablet? I'm also trying to clone some children's tablets.
Device that you are trying to bring this data to would most likely need to be running the same lineage ROM if I'm understanding what you're trying to do the lineage ROM that you are trying to back up has a higher Android version than this tablet that you said has a Android 6 version
Now let's say that you have to identical Samsung Tab 3s both running the same Android version and you want to clone them then everything would work out flawlessly
I installed TWRP and Magisk in my Galaxy S9.
Afterwards I unrooted it and re-installed the stock ROM and I realized that it was not possible to restore the secure folder. My fault for not checking that it was not possible after rooting a Samsung phone.
I would like to recover the files of my secure folder. I can see in Samsung Cloud that the backup of my secure files is there, but there is no way to access the files.
So option 1 is to buy a new Samsung terminal, recover my files, make a factory reset and return the phone to the store.
Is there an option 2?
Thanks!