Related
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..
My s3 stopped recognizing the Sim yesterday, so i searched for a solution. i read in xda that its the EFS partition. I got no IMEI and no Baseband. Somehow i found 2 files on the internal SD Card: "efsbackup.tar" and "efsdev-mmcblk0p3.img".
I read this thread, but it didnt help me.
Any idea how i could fix it?
Btw, Android Revolution HD 11.0 with stock kernel
I'm guessing your Rom auto backs up the efs, so best to ask on their thread about reinstalling it
Restore your EFS backup .
jje
im going to install now arhd 11.3 and then do the restore of the efs backup.
i noticed that the backup was built yesterday evening, when the problem already was. well it seems like i got no backup, when it was working
I followed in this thread this post:
Process:
1. make a copy of your EFS folder using root explorer and store it somewhere safe (on your SD card and external SD card should do it).
2. delete the EFS folder from the root of your phone using root explorer.
3. reboot the phone
4. open root explorer and go to the EFS folder (yes, it is still there! The Android OS has generated a new one for us) and delete the following files:
nv_data.bin
nv_data.bin.md5
nv.log
.nv_data.bak
.nv_data.bak.md5
nv_data.bin.bak
and the entire IMEI folder.
5.Now go to your backed up EFS folder on your sd card and copy the IMEI folder and the " .nv_data" file (note the dot) to your new EFS folder.
6.Make another copy of the ".nv_data" file in your new EFS folder. Rename one of them to "nv_data.bin" and the other one to "nv_data.bin.bak".
7. Connect your phone to your PC and start up EFS PRO. After your phone has been detected, press the "Repair nv data" button to correct the ownership and permissions.
8. Reboot your phone into recovery mode using the three botton combo and flash the original modem firmware (the modem.bin file that you extracted earlier) to your phone using Odin (use the "phone" button for the upload) or Heimdall (use the "radio" partition for the modem.bin file upload).
9. Reboot the phone normally and your IMEI number will be restored and you will be able to connect to your mobile network again
Click to expand...
Click to collapse
and now i got an IMEI, but its still not mine: 004999010640000 / 01
If you have an efs.tar file why dont you put it in PDA in Odin?.
wont work.
deleted
Ok....then I dont understand why it backs up as a tar file then
yesterday i flashed siyah kernel, siyah probably made a efs backup. but that backup was already after that problem happened.
well i got now the 0049 imei
So you dont have a back up of you original IMEI is that what your saying?.Flashing ROMs normally is what makes a backup not flashing a kernel so Id say the backup is original.
Read this
http://forum.xda-developers.com/showthread.php?p=30682712
i read this but i dont know what to do with it. i understand that this are options to backup the efs partitions but not how to restore it how to restore it if already lost
x Schieby said:
i read this but i dont know what to do with it. i understand that this are options to backup the efs partitions but not how to restore it how to restore it if already lost
Click to expand...
Click to collapse
you need to read better then
You'll need to perform an "IMEI injection" which is a kludgy last-resort restore method that manually writes the IMEI to NVRAM; the link I provided in Part C of "Backup" will tell you how to do it.
x Schieby said:
My s3 stopped recognizing the Sim yesterday, so i searched for a solution. i read in xda that its the EFS partition. I got no IMEI and no Baseband. Somehow i found 2 files on the internal SD Card: "efsbackup.tar" and "efsdev-mmcblk0p3.img".
I read this thread, but it didnt help me.
Any idea how i could fix it?
Click to expand...
Click to collapse
That's what the efs backup is for xD
Calm down, or you'll make things worse. Unzip the efs.tar to /efs and reboot your phone (DON'T PULL THE BATTERY)
Everything should work like a charm again
Hope I could help!
LG familyguy59/Beatsleigher
slaphead20 said:
you need to read better then
You'll need to perform an "IMEI injection" which is a kludgy last-resort restore method that manually writes the IMEI to NVRAM; the link I provided in Part C of "Backup" will tell you how to do it.
Click to expand...
Click to collapse
sorry, but i still dont get it with the qpst. thats the part c you are thinking of right?
familyguy59 said:
That's what the efs backup is for xD
Calm down, or you'll make things worse. Unzip the efs.tar to /efs and reboot your phone (DON'T PULL THE BATTERY)
Everything should work like a charm again
Hope I could help!
LG familyguy59/Beatsleigher
Click to expand...
Click to collapse
going to try this now
familyguy59 said:
That's what the efs backup is for xD
Calm down, or you'll make things worse. Unzip the efs.tar to /efs and reboot your phone (DON'T PULL THE BATTERY)
Everything should work like a charm again
Hope I could help!
LG familyguy59/Beatsleigher
Click to expand...
Click to collapse
well, thats how my phone ended. i did that yesterday and my phone finally didnt even booted.
then i went to my carriers shop and told them it wont boot, and today i got a brand new phone
anyway thanks to all help!
Hello, i have used ktool to restore my imei, but it ereased all my efs folder files, so now it is empty. I have made my imei backup using ktool app, so i have efs.img and efs.tar.gz files.
I have tried to flash stock rom with odin but not only one of them boots, they all get bootloop. My phone only works with cm9 but it has no imei and no network.
So i need these files from efs folder, could any one help with this? Or is it possible to restore them with my back up files?
cH5 said:
Hello, i have used ktool to restore my imei, but it ereased all my efs folder files, so now it is empty. I have made my imei backup using ktool app, so i have efs.img and efs.tar.gz files.
I have tried to flash stock rom with odin but not only one of them boots, they all get bootloop. My phone only works with cm9 but it has no imei and no network.
So i need these files from efs folder, could any one help with this? Or is it possible to restore them with my back up files?
Click to expand...
Click to collapse
A simple copy and paste worked for me using root explorer.
If you have efs back ups:
Delete entire efs file on the root of you phone and reboot. Upon reboot a new efs file will automatically be created.
Copy the efs file back up and place into the newly created efs file at the root of your phone. Reboot into recovery and wipe cache.
This method restored a corrupted efs file on my s3.
alaska_ryder said:
A simple copy and paste worked for me using root explorer.
If you have efs back ups:
Delete entire efs file on the root of you phone and reboot. Upon reboot a new efs file will automatically be created.
Copy the efs file back up and place into the newly created efs file at the root of your phone. Reboot into recovery and wipe cache.
This method restored a corrupted efs file on my s3.
Click to expand...
Click to collapse
I have only two back up files: efs.img and efs.tar.gz, but efs folder should contain much more files.
I delete efs folder in the root and restart phone, but anfter restart it only creates the efs folder which is empty.
cH5 said:
I have only two back up files: efs.img and efs.tar.gz, but efs folder should contain much more files.
I delete efs folder in the root and restart phone, but anfter restart it only creates the efs folder which is empty.
Click to expand...
Click to collapse
Ok so click on efs.tar.gz and there should be the efs file. Copy that and and place into efs file at the root of your phone. Click on 'yes' when it asks if you would like to overwrite the file
alaska_ryder said:
Ok so click on efs.tar.gz and there should be the efs file. Copy that and and place into efs file at the root of your phone. Click on 'yes' when it asks if you would like to overwrite the file
Click to expand...
Click to collapse
I have done this, but after reboot all these files are deleted and efs folder remains empty.
cH5 said:
I have done this, but after reboot all these files are deleted and efs folder remains empty.
Click to expand...
Click to collapse
Ktool must of made a back up an empty folder. Don't know what to tell you. Do you have any files in storage called efs_backup? I think some recoveries or kernels automatically back up the efs file when doing a nandroid. Find the earliest back up and copy and paste.
alaska_ryder said:
Ktool must of made a back up an empty folder. Don't know what to tell you. Do you have any files in storage called efs_backup? I think some recoveries or kernels automatically back up the efs file when doing a nandroid. Find the earliest back up and copy and paste.
Click to expand...
Click to collapse
The back up is made correctly, i open .tar file and there are all these files, but when i copy them into the efs folder in root and reboot phone, these copied files are just gone.
cH5 said:
The back up is made correctly, i open .tar file and there are all these files, but when i copy them into the efs folder in root and reboot phone, these copied files are just gone.
Click to expand...
Click to collapse
I read on some other efs problem threads that flashing some newer firmware (ending with mg4 or something like that) reformats the efs file and you have to flash different firmware in order to fix from back ups. Look into other threads, they might have the proper procedures to fixing efs.
alaska_ryder said:
I read on some other efs problem threads that flashing some newer firmware (ending with mg4 or something like that) reformats the efs file and you have to flash different firmware in order to fix from back ups. Look into other threads, they might have the proper procedures to fixing efs.
Click to expand...
Click to collapse
Trying to flash firmwares and roms with these endings, but the phone doesnt boot, just stucks on samsung logo and repeats animation. It might be because i was installed leaked 4.2.2 xxufme7 firmware so it cant downgrade to 4.1.2 firmware.
cH5 said:
Trying to flash firmwares and roms with these endings, but the phone doesnt boot, just stucks on samsung logo and repeats animation. It might be because i was installed leaked 4.2.2 xxufme7 firmware so it cant downgrade to 4.1.2 firmware.
Click to expand...
Click to collapse
Just a thought are you doing a factory reset between flashes also doing a factory reset with stock recovery will wipe your entire internal sd
Have a look at EFS Pro to restore a tar .
http://forum.xda-developers.com/showthread.php?t=1308546
neilster2020 said:
Just a thought are you doing a factory reset between flashes also doing a factory reset with stock recovery will wipe your entire internal sd
Click to expand...
Click to collapse
This might be my misstake.
By the way, this is solved already. I flashes stock 4.0.4 version and used ktool to restore .img and .tar files, after reboot network came back and all efs folder files were also back, then flashed atock MG6 So now i am on this stock firmware.
But i still cant install leaked version FMU7, it gives me fake IMEI and no network, any ideas?
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:
I dont have box. Phone shows IMEI Unknown. Need to find it in filesystem to write it back
I am trying to find my IMEI in my filesystem, oneplus 8.
Is it somewhere encrypted?
Any APPS that save it in Logs? or /data/opdiagnose logs maybe?
Does *#06# work?
Otherwise this may be useful:
[GUIDE] Recover your IMEI in 9 steps.
If you did not make any backup of your EFS folder, and your IMEI is messed up, this could be your solution to recover your lost IMEI. NOTE THAT AT LEAST YOU MUST HAVE THE SHIPPED ORIGINAL EFS FOLDER ON YOUR PHONE ( even if you didn't make a...
forum.xda-developers.com
Twrp backup? Efs restore
OnePlus community you search
OnePlus Community
Introducing our new OnePlus Community experience, with a completely revamped structure, built from the ground-up.
community.oneplus.com
chrysopra said:
Otherwise this may be useful:
[GUIDE] Recover your IMEI in 9 steps.
If you did not make any backup of your EFS folder, and your IMEI is messed up, this could be your solution to recover your lost IMEI. NOTE THAT AT LEAST YOU MUST HAVE THE SHIPPED ORIGINAL EFS FOLDER ON YOUR PHONE ( even if you didn't make a...
forum.xda-developers.com
Click to expand...
Click to collapse
that post is 11 years old........... what is the EFS folder in op8 even?
and no I dont have backups or original box..... thats why i make this post.....
i searched the entire internet for entire days now..... pls answer if you have a solution
The efs folder is in the root directory of your phone. While almost every year a new verison of Android appears, the basic structure didn´t change.
With a normal file manager, the efs isn´t accessible, not even visible.
That´s not a bug, it´s a (security) feature, protecting this essential folder from being deleted or overwritten accidentially.
FYI:
Android from A to Z: What is the EFS folder?
The EFS folder contains important system files. It is advisable to make a backup, and not modify it if we do not have advanced knowledge.
androidayuda.com
chrysopra said:
The efs folder is in the root directory of your phone. While almost every year a new verison of Android appears, the basic structure didn´t change.
With a normal file manager, the efs isn´t accessible, not even visible.
That´s not a bug, it´s a (security) feature, protecting this essential folder from being deleted or overwritten accidentially.
FYI:
Android from A to Z: What is the EFS folder?
The EFS folder contains important system files. It is advisable to make a backup, and not modify it if we do not have advanced knowledge.
androidayuda.com
Click to expand...
Click to collapse
it;s not there.... I'm root with adb shell su. if it's there how to access it? are you sure it's there?
the efs consists mainly of two files: modemst1 and modemst2.
Read his:
How to Fix Corrupt EFS/No IMEI/Network Issues [3 Methods]
In this comprehensive guide, we will show you various methods to fix corrupt EFS, No IMEI, No SIM card detected, and network-related issues
www.droidwin.com