hello i need help i´ve been trying to unblock my samsung vibrant but i cant find efs folder or nv_data.bin. what can i do. I don´t have a copy of this files i´m desesperate please help
Do you have root access and root explorer?
on the market look up galaxy S unlock. Not All vibrants had the nv_data file or whatever it is that allowed them to be unlocked in that way If I remember correctly. Galaxy S unlock has a generic unlock method for the Vibrants affected by this. I used it, it seemed to work. dunno, since I haven't tested it on any other SIM cards, but it did backup /efs to the SD card and create the files as it said it would.
Its worth a shot, and comes with a way to revert back if issues occur. Be sure to follow instructions, Don't delete the files it creates on the SD until you test everything out and make sure you have no issues. This way you can revert back using the backup.
same here
I try to get an unlock code using generate unlock window but after I ran it, it show error unable to find file <nv_data.bin>
Do I have to root it first b4 i can unlock it? please help.
thank you
Hello I seem to have the same issue...
I have rooted the phone, I have a file manager to browse my in-phone folders..
I went in the efs folder it says: "the folder is empty or have been banned. not the retrieved information"
I have also been trying to unlock the phone.. (i9000) I have tried all the ways that are on the xda developers and have finally tried to do it the manual way...
But I am stuck at transferring the nv_data.bin file...
Please help out!
Thanks
Im having the same issue. Been looking for an answer for hours and no luck. Im dying to use this phone...
same
i have the same isssue
Hello, The reason that you can not find the folder EFS it is because it is hidden. You can install Android Terminal Emulator from market
And then run it and write the command to see all the folder
ls -l
You will see the EFS folder.
Please let me know if it works for you
samsung advance sin imei ni nv_data.bin
hello my samsung advance imei not displayed and entered the efs folder and I find no data data.bin bak as I can do to put a generic one at least? or if someone is kind enough to pass me those files so I test if it works ... thanks!: Crying:
no nv_data.bin found
Hi there!
My 2.3.3 is rooted,
there is no /efs folder and
nv_data.bin was not found in the system.
what can i do in this case!?
Is there a tool to check if my efs backup is good or not ?
currently I have a bad efs on my phone, and when I tried to restore a 3 months old backup my phone still does not recognize my imei.
so, I m wondering if there is a program to check whether my backup is good or not.
also, I guess it is impossible to read the imei from the nv_data.bin file ?
BTW, the app I used to backup my efs folder copied the entire folder into /sdcard/backup/efs so I have a copy of the (entire) efs folder and not a .tar archive. does that makes any difference ?
I read some where in the dev section that copying the folder will loose the permission, is that the only thing I lost from my backup ?
Forgot to have nandroid backup . Wiped data, cache partition, dalvik cache, battery stats Couple of times. Screwed up the phone for flashing, No signal.. Later, I was able to fix it with SGSII_repair But, stuck with a generic IMEI (004999010640000). I haven't backed up efs folder. Now I'm only left with cryptprop_es in the previous efs folder.. Is there any way to restore original IMEI ???
computechnopro said:
Forgot to have nandroid backup . Wiped data, cache partition, dalvik cache, battery stats Couple of times. Screwed up the phone for flashing, No signal.. Later, I was able to fix it with SGSII_repair But, stuck with a generic IMEI (004999010640000). I haven't backed up efs folder. Now I'm only left with cryptprop_es in the previous efs folder.. Is there any way to restore original IMEI ???
Click to expand...
Click to collapse
Try this ! You must have:
-Root
-Root explorer for copying files to and from EFS folder
-Android SDK for the ADB tools or Terminal in your phone.
IMEI is stored in ".nv_data" file in ORIGINAL SHIPPED EFS folder too, so you just have to do these:
1) make a copy of your EFS folder to your sdcard using root explorer and then make a backup of the folder to your computer [ to have another copy if you had to format sd card sometime ]
2) delete the EFS folder (BE SURE YOU HAVE BACKED IT UP IN A SAFE PLACE AS SAID IN STEP 1) from the root of your phone using root explorer.
3) reset the phone, after that, go to the root, and you can see that the EFS folder is still there, don't make any mistake, this EFS folder is new and generated by the android OS.
4) go to EFS folder using root explorer, and delete "nv_data.bin", "nv_data.bin.md5".
5) go to your backed up EFS folder on your sdcard, copy the "imei" folder to the EFS folder at the root of your phone, then again go to the backed up EFS folder at yout sdcard and copy the " .nv_data " file to your EFS folder at the root of your phone using root explorer, NOTE: the dot in first of nv_data is not a mistake, copy the ".nv_data" file.
6) make another copy of the ".nv_data" file in EFS folder in your phone, so you would have 2 copies of ".nv_data" in EFS folder
7) rename one of ".nv_data" files to "nv_data.bin" and another one to "nv_data.bin.bak"
8) at your PC open CMD at the ADB tool path, or run Terminal at your phone enter these commands:
adb shell ( use this command of you use ADB, if you're using terminal, skip this line )
su ( ALLOW THE MESSAGE CAME AT YOUR PHONE's DISPLAY BY SUPERUSER PROGRAM )
chown 1001:radio /efs/nv_data.bin
9) reset your phone.... after that you have your original IMEI. you can check your IMEI by dialing *#06#.
If all the above steps do not work, check with a called developer Odia on XDA, he has recovered many phones with lost EFS.
All the best.Hope this helps!
ksantoshh said:
Try this ! You must have:
-Root
-Root explorer for copying files to and from EFS folder
-Android SDK for the ADB tools or Terminal in your phone.
IMEI is stored in ".nv_data" file in ORIGINAL SHIPPED EFS folder too, so you just have to do these:
1) make a copy of your EFS folder to your sdcard using root explorer and then make a backup of the folder to your computer [ to have another copy if you had to format sd card sometime ]
2) delete the EFS folder (BE SURE YOU HAVE BACKED IT UP IN A SAFE PLACE AS SAID IN STEP 1) from the root of your phone using root explorer.
3) reset the phone, after that, go to the root, and you can see that the EFS folder is still there, don't make any mistake, this EFS folder is new and generated by the android OS.
4) go to EFS folder using root explorer, and delete "nv_data.bin", "nv_data.bin.md5".
5) go to your backed up EFS folder on your sdcard, copy the "imei" folder to the EFS folder at the root of your phone, then again go to the backed up EFS folder at yout sdcard and copy the " .nv_data " file to your EFS folder at the root of your phone using root explorer, NOTE: the dot in first of nv_data is not a mistake, copy the ".nv_data" file.
6) make another copy of the ".nv_data" file in EFS folder in your phone, so you would have 2 copies of ".nv_data" in EFS folder
7) rename one of ".nv_data" files to "nv_data.bin" and another one to "nv_data.bin.bak"
8) at your PC open CMD at the ADB tool path, or run Terminal at your phone enter these commands:
adb shell ( use this command of you use ADB, if you're using terminal, skip this line )
su ( ALLOW THE MESSAGE CAME AT YOUR PHONE's DISPLAY BY SUPERUSER PROGRAM )
chown 1001:radio /efs/nv_data.bin
9) reset your phone.... after that you have your original IMEI. you can check your IMEI by dialing *#06#.
If all the above steps do not work, check with a called developer Odia on XDA, he has recovered many phones with lost EFS.
All the best.Hope this helps!
Click to expand...
Click to collapse
I don't have the nv_data files or, anything related to that !!!
Have you tried GSII_Repair from the Market ? This might be your last best chance before you need to send it to Samsung/your telco for repair. Look for it, read the description & then decide whether you want to try it or not.
If this doesn't work, nothing else will.
Edit to add - My bad.
MistahBungle said:
Have you tried GSII_Repair from the Market ? This might be your last best chance before you need to send it to Samsung/your telco for repair. Look for it, read the description & then decide whether you want to try it or not.
If this doesn't work, nothing else will.
Click to expand...
Click to collapse
Yeah !. This is the App Which Has Set The Generic IMEI & Brought Back The Phone's Signal !!! Would it Be A Problem in Future if, I Stick With This Generic IMEI ??? (I Know That Some Operator Blocks This IMEI But, Mine Didn't, Yet..)
MistahBungle said:
Have you tried GSII_Repair from the Market ? This might be your last best chance before you need to send it to Samsung/your telco for repair. Look for it, read the description & then decide whether you want to try it or not.
If this doesn't work, nothing else will.
Click to expand...
Click to collapse
He says in the opening post he has tried GSII_Repair which gave him the generic IMEI.
OP, if your EFS folder is empty and you made no previous backups I suspect you will have to send it for repair.
Imei is known by telephone company?
Can't he just get imei from them and create new folder if there is no backup?
Isn't imei on phone box?
Sent from my HTC Glacier using XDA App
The necessary files are encrypted. Even if he knows the IMEI it's not just a simple case of creating a text file with it in for example. I wouldn't be surprised if his MAC address has gone too.
Do a search for the post about user ODIA who has helped some with no IMEI .
jje
ksantoshh said:
Try this ! You must have:
-Root
-Root explorer for copying files to and from EFS folder
-Android SDK for the ADB tools or Terminal in your phone.
IMEI is stored in ".nv_data" file in ORIGINAL SHIPPED EFS folder too, so you just have to do these:
1) make a copy of your EFS folder to your sdcard using root explorer and then make a backup of the folder to your computer [ to have another copy if you had to format sd card sometime ]
2) delete the EFS folder (BE SURE YOU HAVE BACKED IT UP IN A SAFE PLACE AS SAID IN STEP 1) from the root of your phone using root explorer.
3) reset the phone, after that, go to the root, and you can see that the EFS folder is still there, don't make any mistake, this EFS folder is new and generated by the android OS.
4) go to EFS folder using root explorer, and delete "nv_data.bin", "nv_data.bin.md5".
5) go to your backed up EFS folder on your sdcard, copy the "imei" folder to the EFS folder at the root of your phone, then again go to the backed up EFS folder at yout sdcard and copy the " .nv_data " file to your EFS folder at the root of your phone using root explorer, NOTE: the dot in first of nv_data is not a mistake, copy the ".nv_data" file.
6) make another copy of the ".nv_data" file in EFS folder in your phone, so you would have 2 copies of ".nv_data" in EFS folder
7) rename one of ".nv_data" files to "nv_data.bin" and another one to "nv_data.bin.bak"
8) at your PC open CMD at the ADB tool path, or run Terminal at your phone enter these commands:
adb shell ( use this command of you use ADB, if you're using terminal, skip this line )
su ( ALLOW THE MESSAGE CAME AT YOUR PHONE's DISPLAY BY SUPERUSER PROGRAM )
chown 1001:radio /efs/nv_data.bin
9) reset your phone.... after that you have your original IMEI. you can check your IMEI by dialing *#06#.
If all the above steps do not work, check with a called developer Odia on XDA, he has recovered many phones with lost EFS.
All the best.Hope this helps!
Click to expand...
Click to collapse
I am not able to delete the efs folder from the root dir. stuck at that step ... please help ...
ano.cresent said:
I am not able to delete the efs folder from the root dir. stuck at that step ... please help ...
Click to expand...
Click to collapse
I believe you have to remount your root folder as R/W.
Are you using a rooted phone with root explorer set to read write ????
jje
suggestion thru my experience
ano.cresent said:
I am not able to delete the efs folder from the root dir. stuck at that step ... please help ...
Click to expand...
Click to collapse
for my phone i encounter that imei 00...... i just save by the online back up where its automaticaly back up my data online and i found my efs folder. very simple step what i did. i ownload this efs file foler then all the conten inside i just copy to efs folder in my root directory and asking to replace existing file yes then reboot the phone. after reboot i checked my imei thru *#06# it back to the original same with the sticker under my battery pack on my gt i9000 hope it will help for other people easy and simple step it will back to original if you have back up efs file..
just to shared my experienced regarding to the problem stated..
I have GT-I9300 never rooted or never flash a rom in it.... as there are some great customized rom so i think to root it and flash it but before flash and even root to my s3 i just realize from different thread that it is necessary to backup my efs folder so i just install es file manager and look for the efs folder in main internal memory.. i found the folder but it is empty when i open it did i done something wrong if not then what the hell is happened to my efs folder how it became active
PLEASE help me
EFC folder is wrong its the
EFS folder back it up then look inside .
shakeebfarhat said:
I have GT-I9300 never rooted or never flash a rom in it.... as there are some great customized rom so i think to root it and flash it but before flash and even root to my s3 i just realize from different thread that it is necessary to backup my efc folder so i just install es file manager and look for the efc folder in main internal memory.. i found the folder but it is empty when i open it did i done something wrong if not then what the hell is happened to my efc folder how it became active
PLEASE help me
Click to expand...
Click to collapse
no need to back up efs folder just for rooting your phone! you can not find any files in efs folder until your phone is rooted and es file manage is enabled root permission.
sriram231092 said:
no need to back up efs folder just for rooting your phone! you can not find any files in efs folder until your phone is rooted and es file manage is enabled root permission.
Click to expand...
Click to collapse
means is it okay to have an empty efs folder utill i rooted my devise... and whenever i root my device the m enable to backup my efs folder which has IMEI and all other important information
JJEgan said:
EFC folder is wrong its the
EFS folder back it up then look inside .
Click to expand...
Click to collapse
Thanx for realizing my mistake.. i make it correct so that other user who have same question easily find it
shakeebfarhat said:
means is it okay to have an empty efs folder utill i rooted my devise... and whenever i root my device the m enable to backup my efs folder which has IMEI and all other important information
Click to expand...
Click to collapse
yes, when ever you root your device, back up efs via philz recovery or any apps you would like to.
:good:
My IMEI is empty and phone does not read sim card.
I have read this tutorial: http://forum.xda-developers.com/galaxy-s2/general/guide-recover-imei-9-steps-t1264021
I have root access and I can see the files in EFS folder with root explorer, but can't delete any of the files. I also can't mount EFS folder to r/o.
Does anyone know the solution?
Sziklián said:
My IMEI is empty and phone does not read sim card.
I have read this tutorial: http://forum.xda-developers.com/galaxy-s2/general/guide-recover-imei-9-steps-t1264021
I have root access and I can see the files in EFS folder with root explorer, but can't delete any of the files. I also can't mount EFS folder to r/o.
Does anyone know the solution?
Click to expand...
Click to collapse
Please read forum rules before posting
You may make ONE thread asking your question and then if no one answers at all in 24 hours you may bump it
You already made this: http://forum.xda-developers.com/galaxy-s2/help/help-galaxy-s2-read-sim-card-t2815607
Please do not make anymore duplicate threads
Thanks
FNSM