Hello,
as the title said i want to backup my EFS files to keep it just in case
but i decided to stay at the stock rom/root/kernel/recovery for a while
so, is there any why i can backup my EFS files with fully stock phone ??
MamomaN said:
Hello,
as the title said i want to backup my EFS files to keep it just in case
but i decided to stay at the stock rom/root/kernel/recovery for a while
so, is there any why i can backup my EFS files with fully stock phone ??
Click to expand...
Click to collapse
No need to backup efs if you want to stay on stock.
And no, you must be rooted to backup efs partition
I have a sm-n900 exynos and I have lost my imei and baseband during a Samsung flash. I have a TWRP backup, efs.img backup by dr.ketan's backup tool but nothing is able to restore my efs. I have scanned emmc blocks for bricked blocks and all blocks come back as non-corrupted. may be the partition is corrupted .how do I erase my efs partition to rebuild it. I have tired to flash PIT from ODIN but that too doesn't work.
tried this post http://forum.xda-developers.com/show...567133&page=36
but need a guide to identify the partitions and how to rebuild them. by any chance anyone know if I could extract twrp backup to files to restore efs or from efs.img so I can use the nv_data.bin, since tried restoring the backups and it didn't restore I feel the partition might be corrupt and hence not being re-written. so might be I have to rebuild the partitions by formatting as explained in this thread. but I don't know exactly the steps for exynos variant. I tried using terminal on twrp but mkef2 command shows mmbcblkp03 doesn't exist which as I have read in posts is the efs partition on this phone and reboots to twrp recovery. and mmbcblkp12 show filesystem too small and reboots to twrp recovery
Can some one upload sm-n900 efs folder may be can try and edit nv_data in hex editer
mithudas28 said:
I have a sm-n900 exynos and I have lost my imei and baseband during a Samsung flash. I have a TWRP backup, efs.img backup by dr.ketan's backup tool but nothing is able to restore my efs. I have scanned emmc blocks for bricked blocks and all blocks come back as non-corrupted. may be the partition is corrupted .how do I erase my efs partition to rebuild it. I have tired to flash PIT from ODIN but that too doesn't work.
tried this post http://forum.xda-developers.com/show...567133&page=36
but need a guide to identify the partitions and how to rebuild them. by any chance anyone know if I could extract twrp backup to files to restore efs or from efs.img so I can use the nv_data.bin, since tried restoring the backups and it didn't restore I feel the partition might be corrupt and hence not being re-written. so might be I have to rebuild the partitions by formatting as explained in this thread. but I don't know exactly the steps for exynos variant. I tried using terminal on twrp but mkef2 command shows mmbcblkp03 doesn't exist which as I have read in posts is the efs partition on this phone and reboots to twrp recovery. and mmbcblkp12 show filesystem too small and reboots to twrp recovery
Can some one upload sm-n900 efs folder may be can try and edit nv_data in hex editer
Click to expand...
Click to collapse
Could you provide more details about the backup you have:
- What files do you have? What is the name of these files, and also the file sizes?
vndnguyen said:
Could you provide more details about the backup you have:
- What files do you have? What is the name of these files, and also the file sizes?
Click to expand...
Click to collapse
I HAVE efs.img created my Dr. Ketan's EFS tool and which had worked succefully so presume it's a good copy, I have a completeTWRP backup of installed VNROM 13.1 which doesn't have the new baseband problem of NE3 in vnrom 14, and have used to rstore efs earlier and has worked successfully.
files I have
efs.img 20 Mb
attached screenshot of twrp backup
Deleted
georgesmh said:
Did u try to flash the previous modem?
Anyways this is an EFS backup
removed
Sent from my SM-N900 using Tapatalk
Click to expand...
Click to collapse
If that's your EFS back up, I'd remove it, or someone else is gonna enjoy your IMEI
radicalisto said:
If that's your EFS back up, I'd remove it, or someone else is gonna enjoy your IMEI
Click to expand...
Click to collapse
Haha damnn thanks dude I didnt know
Sent from my SM-N900 using Tapatalk
georgesmh said:
Haha damnn thanks dude I didnt know
Sent from my SM-N900 using Tapatalk
Click to expand...
Click to collapse
Keep your EFS info as private as you do your ATM card Pin number my friend :good:
georgesmh said:
Deleted
Click to expand...
Click to collapse
I know its risky but could you please please send me the efs, once my device gets its base band and is up and running i will restore my own efs backup. I dont need to use your iemi and trust me i wont. I would be grateful for to you pleade help me . Tou xould pm me the upload please. A beey veey himble and desperate request.
mithudas28 said:
I HAVE efs.img created my Dr. Ketan's EFS tool and which had worked succefully so presume it's a good copy, I have a completeTWRP backup of installed VNROM 13.1 which doesn't have the new baseband problem of NE3 in vnrom 14, and have used to rstore efs earlier and has worked successfully.
files I have
efs.img 20 Mb
attached screenshot of twrp backup
Click to expand...
Click to collapse
So it seems you have the correct backup for your device. Some more questions:
1- Can you show the link to the EFS tool you have used to make a backup?
2- What is your difficulty now? You don't know how to restore? Cannot restore? Or you already restored but the problem still persist?
Please be noted that you have to restore ALL efs-related partitions, NOT only 1 partition.
At the moment, my app 'IMEI Backup ★Samsung★' can only restore from the backup that has been made by it. But I will add the ability to restore from the backup which was made by other apps, may be in the next release.
vndnguyen said:
So it seems you have the correct backup for your device. Some more questions:
1- Can you show the link to the EFS tool you have used to make a backup?
2- What is your difficulty now? You don't know how to restore? Cannot restore? Or you already restored but the problem still persist?
Please be noted that you have to restore ALL efs-related partitions, NOT only 1 partition.
At the moment, my app 'IMEI Backup ★Samsung★' can only restore from the backup that has been made by it. But I will add the ability to restore from the backup which was made by other apps, may be in the next release.
Click to expand...
Click to collapse
yes i tried to restore both the baxkups and even the whole twrp backup but unfortunatly the system gets restored but not the imei. The link for the tool
https://play.google.com/store/apps/...+tool&pcampaignid=APPU_ALKrU4PHMMy5uAS4yYDYDA
mithudas28 said:
yes i tried to restore both the baxkups and even the whole twrp backup but unfortunatly the system gets restored but not the imei. The link for the tool
https://play.google.com/store/apps/...+tool&pcampaignid=APPU_ALKrU4PHMMy5uAS4yYDYDA
Click to expand...
Click to collapse
That means the above-mentioned app does not work correctly with the restoring job?
Has your phone been rooted? If yes, I will guide you some steps to restore manually.
Yes its rooted and has twrp recovery . It would be just great if you xould guide me
Sent from my SM-N900 using XDA Free mobile app
Hi , i have One question , is there a way to send the nv_data. Bin by adb command ?
request
Hi, please, can someone upload his efs.IMG from sm-n900 ?
I want to write it inside my phone to try with a box if it possible to write after my imei loosed.
I have null/null and no backup from telephone!
i have this phone show
G900W8 Factory mod is on !!! :cyclops:
how can i solve this problem ?
That often happens when your efs folder is empty or contents corrupt. Search for efs backup and restore threads of which there are a few.
Prof Peach said:
That often happens when your efs folder is empty or contents corrupt. Search for efs backup and restore threads of which there are a few.
Click to expand...
Click to collapse
thx for help but if i do back-up efs the restore nothing will change i need to repaire this ESF right ? so what can i do repair it
just me face this problem on S5 !!! i flash with odin same thing so any one have solution plz
Guys i need a help here i flashed official rom for s4 i9500 , and i did efs backup ,,
after finishing flashing i cant get any signal and null/null IMEI .. now how to restore efs folder ??
anyone can help
My guess is your were on lollipop and flashed kitkat.
Flash a lollipop modem and your imei is back.
New Life said:
Guys i need a help here i flashed official rom for s4 i9500 , and i did efs backup ,,
after finishing flashing i cant get any signal and null/null IMEI .. now how to restore efs folder ??
anyone can help
Click to expand...
Click to collapse
If you did a backup then you should be able to restore that backup using the same method. Eg: If you used an app, that app should be able to restore the efs folder.
The problem with the EFS folder on the latest versions of Android is that it doesn't contain the IMEI, last time I checked. The IMEI is now stored in hidden partitions, which is why when it comes to backing up this important stuff I recommend Wanam's EFS Backup tool from the Play Store. Not only does it back up the EFS folder, but also backs up those hidden partitions as well as the modem..
In this instance however, Lennyz1988 I believe has the right answer.
Hi every one..i successfully rooted my s7 edge 935fd.. now I want to take efs back but none of the app in Google playstore backingup my efs..i tried partition backup and it successfully get rooted permission but says that we cannot retrieve any efs partition..any solution ? Pls guide
Any 1 pls
re: efs backup
majidshahab091 said:
Hi every one..i successfully rooted my s7 edge 935fd.. now I want to take efs back but none of the app in Google playstore backingup my efs..i tried partition backup and it successfully get rooted permission but says that we cannot retrieve any efs partition..any solution ? Pls guide
Click to expand...
Click to collapse
If your phone is rooted then you should have twrp installed
and if you have twrp installed it has an options of what it
can backup when you select "backup" or "restore" and
there you will see an option to only backup efs or backup
other things in the phone like system, data, cache & dalvik.
Select EFS and nothing else if that's all you want to backup.
Good luck, have a great day!
Thanks alot dear.. I already did that in twrp. Is that the only thing which I need related to efs ? Is twrp efs backup is reliable ?
Yep.
But move a copy of the backup to your pc just in case you have any future problems.