Database Develop

[Q] (i9000)Deleted efs folder without backup!! Possible to restore?

Unlike other cases posted previously...
All files in efs were deleted, including all hidden .bak files
Now, kies displayed my phone have a product code of XXXXXXXXX and a fake IMEI...
Is it possible to restore the nv_data.bin and other files??
Please help! Thanks....

I have the same problem, is there a solution for that?? Please answer!

Did you install sgs toolbox and used it's check product code function before you deleted your efs? If yes, there is still a chance. If no, there are currently no public fix available yet.
Sent from my GT-I9000 using XDA App

We are on the same boat, as what francis posted. No public fix yet but pretty sure there will be.. its just a matter of time.

the same thing happened to me yesterday when i flashed Cyanogenmod 7, got fake imei but everything worked just fine (call, data, market).
today i deleted everything from efs folder using Root Explorer then installed i9000XWJS5 then, surprise, i got my original imei back.
do not know how and do not know if it will work on you but it worth a try

The same thing happened to me.
If I dial *#06# no imei appears.
In order to use the phone everytime I boot up I have to give r/w permission to system folder. Otherwise it doesn't recognize the sim card.
It seems to me that that the device is not anymore able to recognize itself.
If I try to install CM or other AOSP rom I have status 7 error.
In Rom manager I have a window where I should select wich kind of device it is.
In fastweb installer there is a list of devices and I have to choose wich of them I am using.
I know that there is nothing to do with warranty. But is it possible to go back to a stage where it is possible to install AOSP rom?
Thanks

don't know it may work or not, but some custom roms make a backup of the efs folder on sdcard under /sdcard/backup/efs or /sdcard/backup/efs-XXX
(XXX= some numbers). you can try to restore it from there.
again don't know for sure...

Normallary Not

hellboy2703 said:
don't know it may work or not, but some custom roms make a backup of the efs folder on sdcard under /sdcard/backup/efs or /sdcard/backup/efs-XXX
(XXX= some numbers). you can try to restore it from there.
again don't know for sure...
Click to expand...
Click to collapse
Thanks.
I have checked, but there is no backup.
I know the only one to blame it's me.
Do you think that there is anyway to make possible installing AOSP rom?

Watch out! That guy below me is spam! (User @yankee86)

(Q) efs

Hello, my galaxy S is running on generic imei. Currently i am on darkyrom
1. I have efs folder backup,everytime i boot my phone i have to copy that backuped efs folder to the phones folder, and when i do this i get network signals. Once i reboot the phone i have to do all that again. Any solution to get away with doing it everytime?
2. If i get a efs folder of a working imei phone,can i use that to fix mine imei?
3. While flashing few roms, i get this error in cwm
Assert failed 'is_mounted' (efs) .
Why is that?

if you try to flash another NV_data on your SGS you will end up with either No IMEI number or The generic one 004999 bla bla
To get your original back you need to restore the contents of the backed up efs to the efs on the phone.
If that fails, you will need to flash back to an older firmware, froyo worked for me, Some people say eclair. But try and see for yourself.
I have tried to change the IMEI many many times, it just resulted in the generic one. I cant find any help regarding it as it is illegal and no one will comment.

I did try all the methods but failed. Now question is that does having generic imei affect while installing roms? And why do i need to copy paste the efs folder everytime i boot the device :-\

Oh no you shouldnt need to do this on every boot, something is wrong there. Maybe the backup efs is also corrupt.
The generic IMEI can cause apps to not work properly, Market apps to not download, and signal / call / sms issues.
I have generic IMEI on one of my SGS's and its been fine for weeks.
Delete the current nv_data.bin / nv_data.bin.md5 / nv_data.bak and then reboot.

correct IMEI, but NO EFS folder --> no service

Hello guys, a friend of mine just gave me his phone because "it has got a problem" he said. He just flashed a ROM from CMW, but he noticed that there was no service. the problem is that, if I dial *#06# there is the CORRECT IMEI, but if I search for the EFS folder, there is no trace of it. how is this possible? the IMEI shown in the phone also corresponds to the IMEI wrote on the back of the phone... so it's clearly correct. how this could be possible? I tried adding manually the EFS folder using root explorer (and mounting it as R/W), but after the reboot the phone automatically delete the folder I created.. any idea? thank you!

blak24 said:
Hello guys, a friend of mine just gave me his phone because "it has got a problem" he said. He just flashed a ROM from CMW, but he noticed that there was no service. the problem is that, if I dial *#06# there is the CORRECT IMEI, but if I search for the EFS folder, there is no trace of it. how is this possible? the IMEI shown in the phone also corresponds to the IMEI wrote on the back of the phone... so it's clearly correct. how this could be possible? I tried adding manually the EFS folder using root explorer (and mounting it as R/W), but after the reboot the phone automatically delete the folder I created.. any idea? thank you!
Click to expand...
Click to collapse
Look in My Android Solutions
But First powerdown, pull out Battery, SIM CARD, and EXT.SD card, press power button for a minute, than powerup without SIM and Ext.SD Card, after flashing and reboot , insert them back
Tips before Flashing:-
Backup all your important files, contacts, SMS, game data, images etc to PC or Ext SD card. or make Nanadroid Backup If you have CWM
Backup your EFS Folder to PC or Ext SD card
Enable USB Debugging on Phone. Touch menu> Settings> Applications> Development>
Charge your battery to more than 50% before you attempt any sort of flashing.
Disable Samsung KIES when using Odin. Kill Kies.exe, KiesTrayAgent.exe, & KiesPDLR.exe using Task Manager on PC
Use only ROM and solution for your model and Wipe x3

nothing worked for me.. I tried to flash an earlier version of android, gingerbread, and the EFS folder was recreated but was incomplete. there were no "imei" folder into efs folder, and also there were no nv_core.back files, ecc... despite this, the IMEI number was shown correctly in the phone, but no signal/data... :S

blak24 said:
nothing worked for me.. I tried to flash an earlier version of android, gingerbread, and the EFS folder was recreated but was incomplete. there were no "imei" folder into efs folder, and also there were no nv_core.back files, ecc... despite this, the IMEI number was shown correctly in the phone, but no signal/data... :S
Click to expand...
Click to collapse
Have you tried restoring the original firmware and checked? If not you should do that.
http://forum.xda-developers.com/showthread.php?t=1102881
:fingers-crossed:

no network service issue with jelly bean
I have a similar issue here.
First of all I flashed usin this guide:
thehelptimes.com/install-jelly-bean-on-galaxy-s-i9000-how-to-official-rom-android-4-1
provider is congstar (T-Mobile reseller)
*#06# gives me the correct IMEI
/efs folder exist
/efs/imei too
I tried killing the nv_data.bin in order to have the phone recreate it. That happened, now the phone asked for a pin at reboot but the pin doesn´t get
accepted. It also doesn´t get locked after 3 attempts. It just doesn´t get accepted.
Then I noticed that the rights of the nv_data.bin are different than the other files. I changed that but it got changed back after reboot and the pin still isn´t accepted.
I have no idea whats wrong. Next attempt back to gingerbread :-/

EMnEL said:
Have you tried restoring the original firmware and checked? If not you should do that.
http://forum.xda-developers.com/showthread.php?t=1102881
:fingers-crossed:
Click to expand...
Click to collapse
yep I tried restoring gingerbread, and, as I said, the phone created the efs folder, but it was incomplete... there were no IMEI folder, other folders were missing, and there were NO nv_data.bin files. I tried reflashing jelly bean and the efs folder was, again, completely missing...

Alright, I am gone back to XJVP but this wasn´t much help.
No signal either.
IMEI still shown by dialing *#06#
as of forum.xda-developers.com/showpost.php?p=26827676&postcount=4512
I need to get into root to kill the efs folder.
So I am back to XXJVU (gingerbread) now to get it rooted.
Before root there is still no network yet but I still can display the IMEI 3547.... (which is listed in the settings too).
Alright now I am going to root it. Hope this helps somehow.
I have the strong feeling that this phone ends up as a mp3/mp4 player
UPDATE....
- Alright, according to this I better not kill the efs by ODIN ? I didn´t yet. forum.xda-developers.com/showthread.php?t=1114958
- I checked the efs folder and noticed it is pretty much holding the same content as
in an efs offered for download "i9000 358001043596739 efs.rar" at 199.91.153.60/pa6q9c9bboog/eyyse638dh3kncn/i9000++358001043596739+efs.rar
So it looks pretty much like it should, I can see my perfect IMEI but it still doesn´t work. I am lost. No clue.
Back in my I9003 the SIM just works perfect so it is obviously not an issue of the SIM
UPDATE 2...
- flashed back to XXJP1 Froyo which was a bad idea now the IMEI is empty - F**K!
- going back to XXJVU now
UPDATE 3...
- Back to XXJVU still no signal however it detected at least T-Mobile at boot and gave me a radio box to select T-Mobile.
Sometimes the signal strength shows one bar (two bars when I am going to the window that points in direction of the sender)
though it should be fairly more here as other phones proof. No matter what that means anyway it says there is no service.
UPDATE 4...
- Compared the mobile settings with the i9003 and noticed that the i9003 shows EDGE, the i9000 GPRS

Alright, I got it back to GT_I9000_XXJQ3_XXJPY_DBTJS2 and made an official upgrade to the latest stock via KIES then. Nothing better.
I assume thise phone got a hardware defect then. Even though it doesn´t seem too logical

[Q] i8190 IMEI NULL/NULL

Hello,
got the same Problem like alot others. Wrong flashing and the complete EFS was destroyed.
Now i go back to Stock, rebuild the Baseband and the Counter is 0. But still have IMEI NULL/NULL
I read now alot of posts in the Net and tryed a lot but nothing helped.
So my Question is, is there really a solution to build the IMEI back to the Original one if you completly lose the original
EFS Folder? Or do i need to get it to technican to get it back with a Box?
I tryed IMEI Changer App but this one doesnt work on my i8190.
If there is another way to fix this, would be grate to get a but of Help.
Thank you in advance.

So i try to change the IMEI with ALP. But ALP directly gets an Read Error while try to get the IMEI.
Is there a File i can put in and change it with ALP to get back my IMEI?

I had the same problem when i was on my SGY. Just reflash the rom through odin and fix permissions. ??
There is no bad choises, only bad results.
SGS III Mini
tenshi_xp's PAC Rom RC-3
KitKat 4.4.4.

Hi,
thank you for your Answer. But i already reflashed Stock Rom all things are back, i just miss the IMEI File or Area. Saw on the net there are IMEI Folder to flash with ODIN
so i can change it with ALP. But most of the Sites or Files or deleted, maybe false and Viruses, i dont know.
My Problem is that my complete EFS Folder was lost, no Backup nothing. With different Flashes and Stuff i got it back with Baseband, CSC and so on. Just my IMEI tells
me NULL/NULL and ALP cant get it, because this Part isnt available anymore
Can you tell me Stockrom or something i can try? Need something for an open German i8190.
Best Regards

guzzzi0 said:
Hi,
thank you for your Answer. But i already reflashed Stock Rom all things are back, i just miss the IMEI File or Area. Saw on the net there are IMEI Folder to flash with ODIN
so i can change it with ALP. But most of the Sites or Files or deleted, maybe false and Viruses, i dont know.
My Problem is that my complete EFS Folder was lost, no Backup nothing. With different Flashes and Stuff i got it back with Baseband, CSC and so on. Just my IMEI tells
me NULL/NULL and ALP cant get it, because this Part isnt available anymore
Can you tell me Stockrom or something i can try? Need something for an open German i8190.
Best Regards
Click to expand...
Click to collapse
Our IMEI number isn't saved in /efs partition/folder. It's saved in mmcblk0p9 partition which take up to 1MB. The efs partition (/efs>imei folder) only contains the IMEI key code to access the IMEI number in mmcblk0p9 path. If your IMEI key code got wiped and you didn't make a backup of your efs partition, then you will (unfortunately) never see your IMEI again
BTW : Does WiFi, Bluetooth etc. works or not?
EDIT : I found a interesting therad for you http://forum.xda-developers.com/showthread.php?t=2755787. Maybe you can use this efs backup from this user and change the IMEI to your original one.

xXPR0T0TYPEXx said:
Our IMEI number isn't saved in /efs partition/folder. It's saved in mmcblk0p9 partition which take up to 1MB. The efs partition (/efs>imei folder) only contains the IMEI key code to access the IMEI number in mmcblk0p9 path. If your IMEI key code got wiped and you didn't make a backup of your efs partition, then you will (unfortunately) never see your IMEI again
BTW : Does WiFi, Bluetooth etc. works or not?
Click to expand...
Click to collapse
Yes all other Services are working WiFi and BT. Just the IMEI Numbers are gone.
But if its possible to recreate the Folder and File i think its possible to change the IMEI Number with APS to the old one from the Mobilphone.
But i can get them back if i recover with a OctupsBox or how this boxes are calling?!

guzzzi0 said:
Yes all other Services are working WiFi and BT. Just the IMEI Numbers are gone.
But if its possible to recreate the Folder and File i think its possible to change the IMEI Number with APS to the old one from the Mobilphone.
But i can get them back if i recover with a OctupsBox or how this boxes are calling?!
Click to expand...
Click to collapse
Check my edited post mate

xXPR0T0TYPEXx said:
Check my edited post mate
Click to expand...
Click to collapse
Thank you. Will try this when im back at Home. I will give Feedback if it was possible.

When try to install this with CWM i get an Installation aborted
Isnt there a complete Stock Rom with Partition file and everything needed?

guzzzi0 said:
When try to install this with CWM i get an Installation aborted
Isnt there a complete Stock Rom with Partition file and everything needed?
Click to expand...
Click to collapse
There is an alternative method. You can flash this efs.img (which you find in the zip file) with terminal emulator which needs ROOT access.
1. root your device and download terminal emulator from Google play store.
2. Copy the efs.img to your internal storage and open terminal emulator.
3. After open terminal emulator type su to give root access, (your supperuser app asks for root access, confirm with yes)
4. Type/Copy this code : dd if=/storage/sdcard0/efs.img of=/dev/block/mmcblk0p11 in terminal emulator and press "enter"
5. Now your efs partition got overwritten with the efs.img
BEFORE!! you start this method, backup your "current" efs folder by type in terminal emulator : dd if=/dev/block/mmcblk0p11 of=/extSdCard/EFS.img
Please do this at your own risk!

xXPR0T0TYPEXx said:
There is an alternative method. You can flash this efs.img (which you find in the zip file) with terminal emulator which needs ROOT access.
1. root your device and download terminal emulator from Google play store.
2. Copy the efs.img to your internal storage and open terminal emulator.
3. After open terminal emulator type su to give root access, (your supperuser app asks for root access, confirm with yes)
4. Type/Copy this code : dd if=/storage/sdcard0/efs.img of=/dev/block/mmcblk0p11 in terminal emulator and press "enter"
5. Now your efs partition got overwritten with the efs.img
BEFORE!! you start this method, backup your "current" efs folder by type in terminal emulator : dd if=/dev/block/mmcblk0p11 of=/extSdCard/EFS.img
Please do this at your own risk!
Click to expand...
Click to collapse
Hello,
the Problem is this .ZIP File isnt available anymore on MEGA Hoster

guzzzi0 said:
Hello,
the Problem is this .ZIP File isnt available anymore on MEGA Hoster
Click to expand...
Click to collapse
Wait mate. I will upload this efs.img...

guzzzi0 said:
Hello,
the Problem is this .ZIP File isnt available anymore on MEGA Hoster
Click to expand...
Click to collapse
Here the ZIP file. It's not flashable, just unzip it and flash it with terminal emulator

Im sorry but this didnt helped. I think i really need all Parts back to re-partition + Bootloader and all other stuff to get it back.
But i think to send it to a shop to get it back into life.
Many thanks for your Help and merry Christmas and happy new Year
Best Regards

guzzzi0 said:
Im sorry but this didnt helped. I think i really need all Parts back to re-partition + Bootloader and all other stuff to get it back.
But i think to send it to a shop to get it back into life.
Many thanks for your Help and merry Christmas and happy new Year
Best Regards
Click to expand...
Click to collapse
Yes it's better to send it back to Samsung center
Merry Christmas and happy new year too

S3 MINI i8190 IMEI NULL after cyanogenmod update

Hi guys,
Yesterday I updated my cyanogenmod 11 with newest version doing a wipe cache first. After rebooting my phone seems to have an issue: the IMEI is null and I can't call or receive calls.
So I decided to flash the stock rom with odin, I thought that this could help, but nothing to do, the IMEI is still null and I can't use the phone
The first time I installed cyanogen I made a backup (using TWRP function), looking for that backup files, I discovered a file called efs.ext4.win, but if I try to open it with an unrar program, I see these files inside:
\.files
\bluetooth
\FactoryApp
\imei
\RFHAL
\RFHAL.DEF
\wifi
GUARDFIL
gyro_cal_data
pre_recovery.log
I don't see any "nv_data.bin" file or something like that. Is that normal?
Anyway, I think that EFS folder is corrupt or missing, i don't know. Is there a way to solve this issue? Thank you.

MaterialX said:
Hi guys,
Yesterday I updated my cyanogenmod 11 with newest version doing a wipe cache first. After rebooting my phone seems to have an issue: the IMEI is null and I can't call or receive calls.
So I decided to flash the stock rom with odin, I thought that this could help, but nothing to do, the IMEI is still null and I can't use the phone
The first time I installed cyanogen I made a backup (using TWRP function), looking for that backup files, I discovered a file called efs.ext4.win, but if I try to open it with an unrar program, I see these files inside:
\.files
\bluetooth
\FactoryApp
\imei
\RFHAL
\RFHAL.DEF
\wifi
GUARDFIL
gyro_cal_data
pre_recovery.log
I don't see any "nv_data.bin" file or something like that. Is that normal?
Anyway, I think that EFS folder is corrupt or missing, i don't know. Is there a way to solve this issue? Thank you.
Click to expand...
Click to collapse
S3 mini has no nv_data.bin file in EFS folder. You made already a backup of your efs, try to restore it with TWRP to get your IMEI back
Sent from my GT-I9301I using XDA Free mobile app

xXPR0T0TYPEXx said:
S3 mini has no nv_data.bin file in EFS folder. You made already a backup of your efs, try to restore it with TWRP to get your IMEI back
Sent from my GT-I9301I using XDA Free mobile app
Click to expand...
Click to collapse
Thanks for replying.
I tried to restore EFS folder using TWRP and my backup, but nothing changed, I still don't have Imei and baseband.
Do you think that flashing a PIT file could help me?
Thank you so much.