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(GUIDE)EFS/Emergency calls only/not registered with network- WHY, WHEN & HOW TO SOLVE

(GUIDE)EFS/Emergency calls only/not registered with network- WHY, WHEN & HOW TO SOLVE
HI Mates, there are already a lot of comments posted about efs. But I think a detail need to talk about. Here we are:
# suddenly you find that your phone is not getting the network. When you try to make a call it says: not registered with network. Problem remains even after restock.
WHY & WHEN
usually it happens while you flash(sometimes dirty) roms often and/or
Switching from AOSP to AOKP to SAMMY vice versa. .
HOW TO SOLVE
as you are flashing roms, naturally you are rooted and you have a root explorer. Roms from 4.1 and later ones automatically creats a efs back up while you flashing a new one. When you found the disturbances, with a root explorer search for the folder "efs_Backup".
The location varies from rom to rom. You may find it under sdcard, may find under /data/media or somewhere else. After you find the folder
Open it
You will find several zip files created in different dates. Those dates are your rom flashed dates.
Choose the right dated one remembering when your phone was fine.
Extract the zip.
Go to /efs
Delete entire contents of the folder.
Go to the efs zip extracted folder.
Selct all and move them to the /efs folder.
Your phone is back as normal!
CHEERS!
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Very helpfull sir. Thanks a lot for theae usefull informations and solution.
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sarefin said:
Very helpfull sir. Thanks a lot for theae usefull informations and solution.
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Click to expand...
Click to collapse
Did you face the problem? Solved now?
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nitol said:
Did you face the problem? Solved now?
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Click to collapse
Yes sir, I've searched the entire section & your way solved just as you instructed. Can I save these efs backups in location of my choise?
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sarefin said:
Yes sir, I've searched the entire section & your way solved just as you instructed. Can I save these efs backups in location of my choise?
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Click to collapse
Sure you can. You don't need to keep them all actually. Just keep any working date's one in any place you want. Use if needed. I HOPE NOT NEEDED
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nitol said:
Sure you can. You don't need to keep them all actually. Just keep any working date's one in any place you want. Use if needed. I HOPE NOT NEEDED
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Click to collapse
Thanks again.
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Dear nitol. You saved my life. Thanks.

EFS Backup got deleted
nitol said:
HI Mates, there are already a lot of comments posted about efs. But I think a detail need to talk about. Here we are:
# suddenly you find that your phone is not getting the network. When you try to make a call it says: not registered with network. Problem remains even after restock.
WHY & WHEN
usually it happens while you flash(sometimes dirty) roms often and/or
Switching from AOSP to AOKP to SAMMY vice versa. .
HOW TO SOLVE
as you are flashing roms, naturally you are rooted and you have a root explorer. Roms from 4.1 and later ones automatically creats a efs back up while you flashing a new one. When you found the disturbances, with a root explorer search for the folder "efs_Backup".
The location varies from rom to rom. You may find it under sdcard, may find under /data/media or somewhere else. After you find the folder
Open it
You will find several zip files created in different dates. Those dates are your rom flashed dates.
Choose the right dated one remembering when your phone was fine.
Extract the zip.
Go to /efs
Delete entire contents of the folder.
Go to the efs zip extracted folder.
Selct all and move them to the /efs folder.
Your phone is back as normal!
CHEERS!
Sent from my GT-N7100 using xda premium
Click to expand...
Click to collapse
Currently i'm on 4.2.1
Yesterday i flashed paranoid android and then today i flashed the Hawkish Extreme on my Note II
After flashing the network wasn't working
so i decided go and restore to my original using the backup file in cwm
after a successful flash the baseband tab was showing NO BASEBAND, basically no modem installed
Then i decided to go to the official stock 4.2.1 from 4.2.2 using odin i flashed but you need to wipe everything before downgrading
so now i dont have efs backup
Please help!!

EFS Restore
Hi,
You are gr8..After 2 days of efforts, finally my phone started working..

IMEI is lost

Hello,
My friend has deleted the EFS folder. Now the Note 2 don't work in 3G, can i resolve this problem without backup?

If you don't have an Efs backup, I don't think anything else can be done except trying to flash stock rom through odin.How did your friend manage to delete the Efs folder ??
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Perhaps he just asking for a friend.
Nothing you can do except flash stock rom and hope for the best. Otherwise to the service centre it goes and you'll have to pay.
Beamed from Jupiter on my Galaxy Note II

With CyanogenMod he lost the folder. Can the software Srs Samsung help me?

Marchintosh said:
With CyanogenMod he lost the folder. Can the software Srs Samsung help me?
Click to expand...
Click to collapse
Is your phone rooted? If yes, which rom in it right now? Normally efs auto backed up on 4.1+ roms. Iook in /sdcard/efs_Backup or /data/media/efs_backup. If found then take the right dated one while your ph. Was fine. Those are in zip, extract and move entire contents to /efs folder. If not found, search every folder of your phone. If don't see such folder. Restock.
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nitol said:
Is your phone rooted? If yes, which rom in it right now? Normally efs auto backed up on 4.1+ roms. Iook in /sdcard/efs_Backup or /data/media/efs_backup. If found then take the right dated one while your ph. Was fine. Those are in zip, extract and move entire contents to /efs folder. If not found, search every folder of your phone. If don't see such folder. Restock.
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Click to collapse
I don't found it and the ROM of Android in stock don't restore the IMEI.

Can i copy my IMEI of Note 2 on his Note 2?

Marchintosh said:
Can i copy my IMEI of Note 2 on his Note 2?
Click to expand...
Click to collapse
No,You will also get block by your ISP & you will not able to use your mobile,don't share your IMEI with anyone else.

Phone is completely messed!! Please help with efs restore

Hi, ive accidently wiped my efs files through root explorer, now my phone has no imei or serial number, im in factory mode as well.
I do have a backup of my efs in tar format which I done through efs pro, but when im trying to restore it in efs pro its not locating the file?
Ive tried numerous things to rectify this, ive flashed the tar file in odin that didnt work.
I honestly dont know what to do???
I hope someone can please help me fix this as I have no phone
Thanks very much
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dazza_84 said:
Hi, ive accidently wiped my efs files through root explorer, now my phone has no imei or serial number, im in factory mode as well.
I do have a backup of my efs in tar format which I done through efs pro, but when im trying to restore it in efs pro its not locating the file?
Ive tried numerous things to rectify this, ive flashed the tar file in odin that didnt work.
I honestly dont know what to do???
I hope someone can please help me fix this as I have no phone
Thanks very much
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Click to collapse
Try unpacking the tar.gz, copy the the efs map to the root with the original name ofcourse(With Root Explorer AND WITH READ WRITE PERMISSION!), then reboot. I've had the same situation as you do, this was the only fix for me.

Thanks for reply, I got efs pro to work in the end but my phone is still ****ed it has no imei or serial number? Ive been looking for a solution all day.
Its also still in factory mode it says h/w not active and rf cal date unknown.
I also tried what u said and it says theres not enough space in the folder when I copy it? Its an efs.img file? And its 20mb in size. I swear if I get this sorted im never rooting my phone again.
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dazza_84 said:
I also tried what u said and it says theres not enough space in the folder when I copy it? Its an efs.img file? And its 20mb in size. I swear if I get this sorted im never rooting my phone again.
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Click to collapse
You might need to repartition the phone using a PIT file if you completely removed the folder (and not just the contents).
Reinstall your stock rom using a PIT file in ODIN and after the restoration is done try to restore your EFS again. It should work now!
Cheers!

vladeco said:
You might need to repartition the phone using a PIT file if you completely removed the folder (and not just the contents).
Reinstall your stock rom using a PIT file in ODIN and after the restoration is done try to restore your EFS again. It should work now!
Cheers!
Click to expand...
Click to collapse
I tried what u said but that didn't work, my imei is still 400000? Im not sure if I fixed my serial number though cos it was 0000000 , I changed it in root explorer and it stuck! it hasnt changed back to 000000 so now I think I just need to change my imei back but how do I do that if obviously it seems like my efs backup is corrupt as well?
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Armazia said:
Try unpacking the tar.gz, copy the the efs map to the root with the original name ofcourse(With Root Explorer AND WITH READ WRITE PERMISSION!), then reboot. I've had the same situation as you do, this was the only fix for me.
Click to expand...
Click to collapse
I'm having almost the exact same problem as OP. 2 questions. When you say "copy the efs map" what do you mean by that? All the contents of my unpacked efs .tar.gz backup file? Also, what do you mean by "with the original name"? Thanks!

After restoring the rom with a pit file, did you try restoring the EFS using EFSPro? You should be able to do it just using the restore option in that app, although you should be rooted to be able to restore it.
And what do you mean by "put it back using root explorer?"
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vladeco said:
After restoring the rom with a pit file, did you try restoring the EFS using EFSPro? You should be able to do it just using the restore option in that app, although you should be rooted to be able to restore it.
And what do you mean by "put it back using root explorer?"
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Click to collapse
Yeah after flashin a stock rom with pit file I used efs pro to restore the backup but that didnt work, I can only assume that the back up is corrupt as well? Basically I deleted everything in my efs folder so that I wiped my imei and serial number, my imei is 4000000 and serial number is 0000000, so what I done was change my serial number in root explorer from 0000000 to my actual serial number which is behind my battery, ive rebooted and flashed another stock rom since then and it hasnt changed, but my imei is still ending with 400000.
So if my backup is corrupt? I have no idea what my options are? Ive had nothing but a headache the last 2 days trying to fix it.
Many thanks
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dazza_84 said:
Yeah after flashin a stock rom with pit file I used efs pro to restore the backup but that didnt work, I can only assume that the back up is corrupt as well? Basically I deleted everything in my efs folder so that I wiped my imei and serial number, my imei is 4000000 and serial number is 0000000, so what I done was change my serial number in root explorer from 0000000 to my actual serial number which is behind my battery, ive rebooted and flashed another stock rom since then and it hasnt changed, but my imei is still ending with 400000.
So if my backup is corrupt? I have no idea what my options are? Ive had nothing but a headache the last 2 days trying to fix it.
Many thanks
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Click to collapse
Did you root after restoring the backup? And did you also enable USB debugging? As I recall, EFSPro requires those to work optimally. And one last thing: did you use the latest version?

I rooted before I restored on efs pro, also what do mean by using latest version? If u mean stock rom? I used DMC3-BTU, thats the only one I had on my computer at the time, I flashed that with a pit file dated 2/11/2012?? Then I rooted and tried to restore the phone but it didnt work? I then thought as the firmware was old I would put a DF1 modem on it but that still didnt work either? Am I doing something wrong? Im going out my mind trying to sort this out!
Thanks alot
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Oh also I restored on old version of efs pro I think it was version 1.93 or summink, as that is the only version that will locate the backup file in the drop down menu?? I just tried the version in the link u gave me but still same? It recognises my phone but when I use the restore drop down bit it is blank? I try to refresh but still blank?? I think it might have something to do with the restore file not being in tar.gz format? I somehow unzipped it and now its just a tar file? I dont know how to rezip the file? Any ideas please would be great.
Thanks
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What are the contents of the tar.gz? I mean: if you open it with winrar / 7z, etc, what do you see?
For instance, when I open my EFS tar.gz backup, I see a single file called efs.img:
If you have that as well, you could try restoring your EFS using DD by putting the EFS.img in the root of your SD card and typing the following commands on ADB Shell:
Code:
adb shell su -c "dd if=/sdcard/efs.img of=/dev/block/mmcblk0p3 bs=4096"

Well ive repackaged the tar file to tar.gz and now efs pro has located the file but I click restore and a pop up comes onto the screen saying *you must select one partition to restore???? I dont know what that means??
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dazza_84 said:
Well ive repackaged the tar file to tar.gz and now efs pro has located the file but I click restore and a pop up comes onto the screen saying *you must select one partition to restore???? I dont know what that means??
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Click to collapse
Just breathe and select the checkbox on the left:

Yeah mines the same in the tar file is a efs.img file, but im so close with efs pro I just dont get what *you must select at least one partition to restore* means?
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Theres nothing in that box to select and if u see on the right drop down box your file says device, mine says PC?
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dazza_84 said:
Theres nothing in that box to select and if u see on the right drop down box your file says device, mine says PC?
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Click to collapse
That means where the backup is located. Mine is on my phone's memory, yours is in your PC's hard drive.

It worked!!! Cant thank you enough for helping me out, really appreciate it, thank you so much.
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dazza_84 said:
It worked!!! Cant thank you enough for helping me out, really appreciate it, thank you so much.
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Click to collapse
Great! Happy for you, buddy! Cheers!

Armazia said:
Try unpacking the tar.gz, copy the the efs map to the root with the original name ofcourse(With Root Explorer AND WITH READ WRITE PERMISSION!), then reboot. I've had the same situation as you do, this was the only fix for me.
Click to expand...
Click to collapse
I had the exact same problem and couldn´t get it to work.so I tried what you described and it worked.
I got my IMEI back but i couldn´t get the phone to connect to a cellular network.
So I rebooted ion to revocery and did a "fix Permissions". it took forever but after that my phone worked lika new again.
A million thanks to you.

Replacing efs folder

Would replacing the efs folder fix a lost or damaged imei?

I've people seen fix their null imei by restoring their efs backup but it will only work I believe if done via the devices original efs.
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Febby said:
I've seen fix their null imei but restoring their efs backup but it will only work I believe if done via the devices original efs.
Sent from my GT-I9505G using Tapatalk 2
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Click to collapse
I'm not sure what you said there but i made a copy of my non corrupt efs folder. In my mind if my imei does become corrupt i should be able to delete the corrupt folder and replace it with the copy to fix any issues.

xmetalfan99 said:
I'm not sure what you said there but i made a copy of my non corrupt efs folder. In my mind if my imei does become corrupt i should be able to delete the corrupt folder and replace it with the copy to fix any issues.
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Click to collapse
I'm sorry I corrected my OP. I was walking and get easily distracted.
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[Q] EFS folder

flipping the device with a root explorer, I can not find it.
Where it is located?
sorry for my english

reking71 said:
flipping the device with a root explorer, I can not find it.
Where it is located?
sorry for my english
Click to expand...
Click to collapse
I have it in both root of SD and the "0" folder. EFS_BACKUPS if done in TWRP. If you did it with FreeGee then in root freegee.
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engine95 said:
I have it in both root of SD and the "0" folder. EFS_BACKUPS if done in TWRP. If you did it with FreeGee then in root freegee.
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ok folder present, thanks to freegee " EFS_BACKUPS "
but I can not display the root folder efs, which is why I ask if compared to the samsung has a different path

reking71 said:
ok folder present, thanks to freegee " EFS_BACKUPS "
but I can not display the root folder efs, which is why I ask if compared to the samsung has a different path
Click to expand...
Click to collapse
The root folder efs? I believe it is different from Samsung. Searching for mk9efs from system root led me here - /dev/block/platform/msm_sdcc.1/by-name/ . Searching for efs from the system root doesn't supply much, the location I just posted and a few other folders like efs-bridge. Now I may be wrong on this, @engine95 knows more than I, but I am under the impression that our efs are on 3 separate partitions and may not be accessible from a root file explorer. I don't think we have a root efs "folder". Again, I am NOT 100% on this and could be completely wrong.......

HPTesla said:
The root folder efs? I believe it is different from Samsung. Searching for mk9efs from system root led me here - /dev/block/platform/msm_sdcc.1/by-name/ . Searching for efs from the system root doesn't supply much, the location I just posted and a few other folders like efs-bridge. Now I may be wrong on this, @engine95 knows more than I, but I am under the impression that our efs are on 3 separate partitions and may not be accessible from a root file explorer. I don't think we have a root efs "folder". Again, I am NOT 100% on this and could be completely wrong.......
Click to expand...
Click to collapse
I'm not quite sure what he's asking.
The EFS backup with TWRP creates an "EFS folder with 3 files in it.
And if I remember right... @HPTesla is right. EFS is in 3 partitions. One of them is actually empty, but is still needed.
You can see the mk9efs files in the folder but that's it. Im guessing FreeGee and TWRP are basically just taking a picture of the partitions.
So to the OP, are you trying to make sure the files are there? Or are you trying to access the files in there?
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HPTesla said:
/dev/block/platform/msm_sdcc.1/by-name/ .
Click to expand...
Click to collapse
this is what I wondering.
where he was physically the folder efs
Thanks

How do you restore the efs backups made with twrp?
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ThatKawaiiGuy said:
How do you restore the efs backups made with twrp?
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Click to expand...
Click to collapse
? You should be able to do it from within TWRP. It depends on the version of TWRP you are using, 2.5.0.0 has been the most stable for this phone in my experience. It's an option in my backup and restore that I can check/uncheck. However, TWRP 2.6.3.0+ is needed to flash almost all 4.4 based roms and the options are different.

HPTesla said:
? You should be able to do it from within TWRP. It depends on the version of TWRP you are using, 2.5.0.0 has been the most stable for this phone in my experience. It's an option in my backup and restore that I can check/uncheck. However, TWRP 2.6.3.0+ is needed to flash almost all 4.4 based roms and the options are different.
Click to expand...
Click to collapse
My efs got jacked up and twrp didn't wanna detect my backup
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ThatKawaiiGuy said:
My efs got jacked up and twrp didn't wanna detect my backup
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Click to expand...
Click to collapse
If you are still using the same TWRP version you used to make the backup but switched to an AOSP based rom it appears as if the backup disappeared. The backup is located in /data/media/TWRP but TWRP will look in /data/media/0/TWRP. You can copy the old backup to the 0/TWRP folder and reboot recovery.
If you are using a different version of TWRP than the one you used to make the backup, your backup may also not show up. You should use the version you used to make the back up to restore it back. I hope this helps.

HPTesla said:
If you are still using the same TWRP version you used to make the backup but switched to an AOSP based rom it appears as if the backup disappeared. The backup is located in /data/media/TWRP but TWRP will look in /data/media/0/TWRP. You can copy the old backup to the 0/TWRP folder and reboot recovery. I hope this helps.
Click to expand...
Click to collapse
It was part of an OpTimuS backup, it was in the actual thing, like there were efs1.win, efs2.win, etc. But I select restore and it.doesn't show up, when it did yesterday
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ThatKawaiiGuy said:
It was part of an OpTimuS backup, it was in the actual thing, like there were efs1.win, efs2.win, etc. But I select restore and it.doesn't show up, when it did yesterday
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Click to expand...
Click to collapse
It was on a stock based? And since it was there yesterday I doubt you are using a different TWRP. Ok I'm at a loss honestly....

HPTesla said:
It was on a stock based? And since it was there yesterday I doubt you are using a different TWRP. Ok I'm at a loss honestly....
Click to expand...
Click to collapse
I'm not having a problem anymore though. Stock works, so I just backed it up with freegee and restored
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