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My IMEI problem fixed :D

hi guys im not sure if this will work on all our galaxy s 4g's but this is how i fixed my imei problem.
step1. used odin v1.85 to flash back to KB5DeodexV21
step2. using root explorer i went into efs folder
step3. copied nv_data.bin
Step4. still in the same folder open root then afs and finally settings.
step5. paste nv_data.bin and reset the device
hope this helps! God Bless

chino1987 said:
hi guys im not sure if this will work on all our galaxy s 4g's but this is how i fixed my imei problem.
step1. used odin v1.85 to flash back to KB5DeodexV21
step2. using root explorer i went into efs folder
step3. copied nv_data.bin
Step4. still in the same folder open root then afs and finally settings.
step5. paste nv_data.bin and reset the device
hope this helps! God Bless
Click to expand...
Click to collapse
this only works if you have it backed up, many of us dont have it backed up or we deleted it for whatever reason. im glad you fixed yours, i have to send it to tmobile

I didnt have a back up i flashed mine back to this rom and it restored the files since i had deleted them by mistake
Sent from my SGH-T959V using XDA Premium App

juan16h said:
this only works if you have it backed up, many of us dont have it backed up or we deleted it for whatever reason. im glad you fixed yours, i have to send it to tmobile
Click to expand...
Click to collapse
why didnt u guys just snag the recovery image out of that folder open it extract the phones default backup of the iemi and copy it back it would have saved u all like a major headache.

RaverX3X said:
why didnt u guys just snag the recovery image out of that folder open it extract the phones default backup of the iemi and copy it back it would have saved u all like a major headache.
Click to expand...
Click to collapse
What if you dont have the folder backed up? Will it still work with this method?
Sent from my SGH-T959V using XDA App

nv_data.bin not found
I did what u did , but nv_data.bin file not found
i used hc-ktool to backup efs , and also nv_data.bin not found

[Q] Can anybody explain what happened to my efs folder

Today I discovered that my Nexus S (9023) had no valid IMEI number. I suspect this happened while I was playing around with TWRP (I'm already back to CWM for the record).
Anyway, I saw no reason to panic, since I had backed up /efs back in june and I still had that backup.
At first, I tried to extract the tarball and copy it's contents to the /efs folder. This lead to my phone not even recognizing my sim card anymore. I tried several other methods of restoring my efs folder including this and this (edit: and this). I didn't succeed with any of these methods to get my sim recognized or have a valid IMEI number. In fact, I even ended up getting an efs folder inside the efs folder and another one inside that one (so ultimately leading to a /efs/efs/efs folder).
Then I wondered what would happen if I were to just delete the whole /efs folder. To be sure, I only renamed the thing to /efs_back. The result was amazing. Immediately, I had a valid IMEI number (the one that actually belongs to my phone). The efs_back folder was now gone however and /efs was back (with just the right content).
So what I can't help wondering is how my /efs folder was miraculously restored. Does the 9023 have some sort of self restoring feature, or did I do something right after all?

Today my IMEI was gone again, but I did not flash anything. I tried again renaming /efs to /efs_back and again, it was immediately replace by a /efs folder, but this time, I needed to reboot to get my IMEI back.
Can somebody please explain what's going on? I'm running CyberGR-MOD ver.8. Should I report my issues in the CyberGR-MOD thread?

Krekker said:
Today my IMEI was gone again, but I did not flash anything. I tried again renaming /efs to /efs_back and again, it was immediately replace by a /efs folder, but this time, I needed to reboot to get my IMEI back.
Can somebody please explain what's going on? I'm running CyberGR-MOD ver.8. Should I report my issues in the CyberGR-MOD thread?
Click to expand...
Click to collapse
Once you get it back, delete the bin files in the folder, then rename the bak files to bin files (ie: the bak files will become bin files after renaming!), reboot & see how you go from there! If all is well then it should stick on each reboot & you should then copy your efs folder to somewhere safe! Your bak files record the changes, so when you've deleted the bin files needed for connection & rename/change the bak files to bin files, the correct information that recorded the change should stick on each reboot!

CrackDaddy said:
Your bak files record the changes, so when you've deleted the bin files needed for connection & rename/change the bak files to bin files, the correct information that recorded the change should stick on each reboot!
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Click to collapse
I don't quite understand. Aren't the .bak files exact copies of the .bin files? And what do you mean by change? What change are you referring to?
Sent from my Nexus S using XDA App

..

Krekker said:
I don't quite understand. Aren't the .bak files exact copies of the .bin files? And what do you mean by change? What change are you referring to?
Sent from my Nexus S using XDA App
Click to expand...
Click to collapse
The bak file records any "changes" to the bin file (before you had a problem, ie: before your imei got corrupted!), meaning that if anything goes wrong with the bin file, the bak file will have the "correct" information stored on it before that "change" happened! Why not just try what I've said? because at this stage you have nothing to lose that you haven't already lost!
PS: if this fix doesn't correct your problem, try following this guide here: http://forum.xda-developers.com/showthread.php?t=881162 This works with the Nexus S also, good luck!

The problem is not how to fix my IMEI. I'm just very confused about why a simple renaming of the whole /efs folder fixes the problem and what caused my IMEI to get corrupted in the first place.
Sent from my Nexus S using XDA App

As the great member Election day taught me a great way of backing up the efs folder as .img by using the cat command in cwm recovery..as soon as you get a valid imei use that method.

Krekker said:
The problem is not how to fix my IMEI. I'm just very confused about why a simple renaming of the whole /efs folder fixes the problem and what caused my IMEI to get corrupted in the first place.
Sent from my Nexus S using XDA App
Click to expand...
Click to collapse
Aside from user intervention, who knows why /efs managed to get corrupted - anything i say is just speculation.
As for the renaming, most likely some kind of factory-backup that was restored when you (effectively) deleted it. This is just fuel for figuring out whether these /efs backups mean anything when the phone can fix itself, but most of us are perfectly happy without the worry of sorting out our IMEI's

IMEI CORRUPTED [Solved]

For those of you whom have flashed a rom for this phone, only to find you want to go back to stock, you may eventually run into a problem.
You lose data connectivity, EDGE2, 3G, 4G.
If you take a look into About Phone area in the Settings, you click status, and you will find your IMEI is corrupted.
Worst case you have to use a HEX Editor to change the values back to default, but I found a simple workaround that any new user can follow
Must be rooted.
Download Root Explorer or ES File Explorer
Change your settings to allow root options
Go to the root of your SD
Navigate to the efs folder
You will see a folder called imei, but you don't want that, you want the root folder
Now go into the afs folder
Now Settings
you should now be in /efs/root/afs/settings
nv_data.bin is the file you are looking for, copy it to the root of your internal or external sd card.
Now delete the nv_data.bin from /efs/root/afs/settings and reboot
Check your IMEI number as you did prior to the walkthrough, chances are, if you are lucky, the OS grabbed the imei during the boot.
Good luck, hope this helps someone like it did me.

imei
andrew2163 said:
For those of you whom have flashed a rom for this phone, only to find you want to go back to stock, you may eventually run into a problem.
You lose data connectivity, EDGE2, 3G, 4G.
If you take a look into About Phone area in the Settings, you click status, and you will find your IMEI is corrupted.
Worst case you have to use a HEX Editor to change the values back to default, but I found a simple workaround that any new user can follow
Must be rooted.
Download Root Explorer or ES File Explorer
Change your settings to allow root options
Go to the root of your SD
Navigate to the efs folder
You will see a folder called imei, but you don't want that, you want the root folder
Now go into the afs folder
Now Settings
you should now be in /efs/root/afs/settings
nv_data.bin is the file you are looking for, copy it to the root of your internal or external sd card.
Now delete the nv_data.bin from /efs/root/afs/settings and reboot
Check your IMEI number as you did prior to the walkthrough, chances are, if you are lucky, the OS grabbed the imei during the boot.
Good luck, hope this helps someone like it did me.
Click to expand...
Click to collapse
Can you possibly tell my step by step how to fix it in a hex editor and what hex editor to download? I actually have a couple of apps that wont work without the imei

I hate this phone. 2 days now and still no help on how to rewrite my imei back to my phone. debating on trashing it and buying another phone now.

Omg thanks!!!!
DUDE, THANK YOU SO MUCH!!!!
I literally spend 7 days trying to get this phone fixed. A T-Mobile representitive finally identified my IMEI as the problem and told me I would have to buy a new phone myself, since rooting it kills the warranty.
BUT
After searching around a bit, I found your post.
YOU FIXED A PROBLEM NO T-MOBILE REPRESENTATIVE EVEN KNEW ABOUT!!!
Saved me a bunch of money!!
Seriously man, great post. Big help!

Can someone tell me in here what should I do if my "efs" folder is EMPTY and I've no backup?
Sorry if I'm resurrecting this thread from the grave.

efs folder not found
What to do if there is no efs folder or a file called nv_data.bin?

I did a low level format to my phone in order to unbrick it, could this fix my imei?
Could this brick my phone again?

How to backup efs folder?

Tried efs pro not work
As i know cwm do not backup efs folder
Tried nitrality did not work
We need to backup efs folder just to be safe while flashing as it contains imei and serial number etc and if lost we will lose connection both wi fi and 3g and our tab will be like a big ipod touch even without wifi (only media no internet or connection at all)
Mohamed Selim

Mohamedselim said:
Tried efs pro not work
As i know cwm do not backup efs folder
Tried nitrality did not work
We need to backup efs folder just to be safe while flashing as it contains imei and serial number etc and if lost we will lose connection both wi fi and 3g and our tab will be like a big ipod touch even without wifi (only media no internet or connection at all)
Mohamed Selim
Click to expand...
Click to collapse
This is what I did on my Galaxy S2 long ago. Use both the backups created by the different commands specified in clean and raw section
http://forum.xda-developers.com/showthread.php?t=1068193&highlight=efs+command
Disclaimer: I have never had to recover from this backup, so you might want to do your own research to make sure you got a good backup. The thread I link to might be a good starting point

AnDruid, I've backed up my SGS 1 's /efs folder using the "tar zcvf /sdcard/efs-backup.tar.gz /efs" command, once rooted, which had all the nv files etc all nicely backed up as explained @ http://forum.xda-developers.com/showthread.php?t=1068193&highlight=efs+command
However, I never did the RAW section ... Never did need to revert back though .. or yet. Though I do not see myself ever going back from Jelly (Helly) Bean, only forward. An interesting "fix" I noticed once the SGS got a little "slow", was to boot into CWM and wipe the Dalvic cache and Cache partition.
Once the phone started up again, it did it's "reconfiguration" and once again worked like when I originally upgraded to Helly.
What I expect Mohamed is experiencing though, is the problem I currently have with my Galaxy TAB 2 P5100 which I've rooted as per http://forum.xda-developers.com/showthread.php?t=1957165 then using Terminal Emulator by Jack Palevich (available from the market), the TAB 2 states that "tar" and "busybox" commands is not available ....
Since I simply can't "yum install tar" or "yum install busybox", I'm a little lost.
Which does raises the question : Mohammed, how did you get past this issue ? Did you backup your TAB 2's (P5100) /efs folder and if so, please advise how.
Though I could "zip" the /efs folder with ES File Explorer, the .zip file does not contain the nv files, which I believe defeats the idea of the backup.

Well, would you believe it's as simple as installing "busybox" from the Play Store ...
Then the "tar" command is available :laugh:

If your tab is rooted you could use Es File Explorer to manually copy/paste the /efs folder into the /sdcard folder and then copy this onto your computer

[Q] Need help on restoring save game file...PRO'S help me.

Hello guys...first of all, i would like to thank you for your time reading my thread and about my problem
And i am sorry if i posted this on the wrong section.
I have been searching for days and in many forums, also googled about my problem...but to no use
I hope the pro's out there can help me out.
Okay..i am playing maplestory live deluxe game from the play store.
The problem is that i want to restore a maplestory live save game file. The save game file is from another link on the internet, which someone else played and uploaded it for other people to use. I want to use it. The save game has many godly items that i need.
But i dunno how to patch the save game file to my maplestory live file, so that i can use that save game.
I use android device (samsung galaxy tab 2 7.0 gt-p3100)
It has [email protected] rooted
Already install titanium backup
The person who posted the save game link said that, the save game file must be extracted and placed under sdcard/titanium backup folder on my device. Then open the titanium backup app and search for the folder...then hit restore.
The biggest problem is, my titanium backup could not detect the save game file that i got from the link.
I know the file is not corrupt cause other people who downloaded it has no problem whatsoever in restoring the file.
I already tried menu>prefrences>backup folder location>detect>whole device on my TB, but it says "no backup location was found"
The save game file is there under sdcard/titanium backup. I can see it clearly...but for some reason TB cannot detect it under the backup/restore tab.
I have also tried reboot to recovery and fix permission...but the problem persist.
Do help me...and thank you in advance

Anyone??...help..

I'm not sure but what i think is u already have a backup in ur titanium backup so it wont show to restore data from the new saved file.
So try this
1. Take a backup of tb folder (in case u mess up)
2. Except the apk file in tb folder in sd card delete other 2 files.
3. Then try the same procedure as above (i.e. copy the data to tb folder again....and so on)
Sent from A2 running
System 1 : Jb leak 4.1.2
System 2 : Useless (Almost)
System 3 : Slimbean
System 4 : Slimkat (latest)

sbetatester said:
I'm not sure but what i think is u already have a backup in ur titanium backup so it wont show to restore data from the new saved file.
So try this
1. Take a backup of tb folder (in case u mess up)
2. Except the apk file in tb folder in sd card delete other 2 files.
3. Then try the same procedure as above (i.e. copy the data to tb folder again....and so on)
Sent from A2 running
System 1 : Jb leak 4.1.2
System 2 : Useless (Almost)
System 3 : Slimbean
System 4 : Slimkat (latest)
Click to expand...
Click to collapse
Sorry..but i don't get what u are saying.
Delete other 2 files? Which file?

There are 3 files on your tb folder
1. Apk
2. Tar.gz (data)
3. Properties file (all compressed)
U have to delete the tar.gz (the data file) in ur tb folder and then put the new data file in that folder and try restore again.
Sent from A2 running
System 1 : Jb leak 4.1.2
System 2 : Useless (Almost)
System 3 : Slimbean
System 4 : Slimkat (latest)

Negative...does not work for me.
Okay...its my first time using TB..
I think the main problem is that i dunno how to access folder or file from TB.
Whenever i hit the Backup/Restore in TB it only opens a list of app that says "Ordered by app name (click to change)"
The list of app name is very long and have 3 colours : red, green and white.
Well i know the red coloured is the OS Kernel and can malfunction your device if u delete or wipe it.
But i do not see any file or folder to access from there (Backup/Restore)
So, how do i backup or restore any file or folder if it isn't there..?
For example, u said to backup my tb folder...i know that the tb folder is under sdcard/titanium backup..
But i don't see it in the Backup/Restore in TB. Is there something i'm missing here?

kraken83 said:
Negative...does not work for me.
Okay...its my first time using TB..
I think the main problem is that i dunno how to access folder or file from TB.
Whenever i hit the Backup/Restore in TB it only opens a list of app that says "Ordered by app name (click to change)"
The list of app name is very long and have 3 colours : red, green and white.
Well i know the red coloured is the OS Kernel and can malfunction your device if u delete or wipe it.
But i do not see any file or folder to access from there (Backup/Restore)
So, how do i backup or restore any file or folder if it isn't there..?
For example, u said to backup my tb folder...i know that the tb folder is under sdcard/titanium backup..
But i don't see it in the Backup/Restore in TB. Is there something i'm missing here?
Click to expand...
Click to collapse
I didnt mean backup/restore tab ... what i said was just copy your tb folder from sd card to pc in case u mess and can restore easily.
And can u just send me the file so that i can check on my side if it works.

Ok..i dunno how to put the file in this post.
But u can get the file here.. http://www.mediafire.com/?g9pvpg26gqtfg
Its a list of save game that this person uploaded and share with other people to use
I need the maplestorylvdelx.zip file and having trouble with it.
Like i said..when i extract it and put it under sdcard/titanium backup...TB just not detecting it.
When i hit Backup/Restore in TB and click on Maplestory icon to restore data...there is no restore option...only backup option.

kraken83 said:
Ok..i dunno how to put the file in this post.
But u can get the file here.. http://www.mediafire.com/?g9pvpg26gqtfg
Its a list of save game that this person uploaded and share with other people to use
I need the maplestorylvdelx.zip file and having trouble with it.
Like i said..when i extract it and put it under sdcard/titanium backup...TB just not detecting it.
When i hit Backup/Restore in TB and click on Maplestory icon to restore data...there is no restore option...only backup option.
Click to expand...
Click to collapse
Well the problem at last .... its not a tb backup file..
If u wanna see how does a tb saved game file actually look like, download a7 (i.e. asphalt 7 game file) from the same link u gave me and open the zip.
Those are the tb files needed to restore game data using tb software like i told u previously (tar.gz and properties file).
Now for your solution
As your file is simple save game data file......
You only need to copy the downloaded file (i.e. maplestory.zip) to root/data/data
And start the game and u will get the saved data.
Hit thanks if i helped you
Sent from A2 running
System 1 : Jb leak 4.1.2
System 2 : Useless (Almost)
System 3 : Slimbean
System 4 : Slimkat (latest)

Okay...first of all, thank you for your patience with me.
Now i finally know the difference between a TB save file and a normal save game data.
Just one last noob question...
U said to extract the maplestory.zip then put it under root/data/data right?
Errr...where do i find the root/data/data folder?....lol
When i open My Files under storage>sdcard , there is no root or root/data/data folder..
But, i do have ES File Explorer and ASTRO File Manager app..
When i use both this app to look in my device...there is also no root/data/data folder... BUT there is a folder named root that is located under device...along with other folders (acct, cache, config, d and so on)
Is that the folder u are mentioning? But the root folder is empty.

And exactly what do i see in this root/data/data folder anyway?
Is it empty or have something in it?

kraken83 said:
And exactly what do i see in this root/data/data folder anyway?
Is it empty or have something in it?
Click to expand...
Click to collapse
Use recova
Sent from my HTC Explorer A310e using Tapatalk 2

Use recova? What is that?

kraken83 said:
Use recova? What is that?
Click to expand...
Click to collapse
Use root explorer ...... the first screen it shows after start is the root folder now
Scroll down and find the data
Then open that and u ll see another data folder
Open it and paste ur file in that folder.
Sent from A2 running
System 1 : Jb leak 4.1.2
System 2 : Useless (Almost)
System 3 : Slimbean
System 4 : Slimkat (latest)