Database Users

Unlock SIM without hex edit

Sorry if this has been posted before...please be careful and don't blame me if you will brick your tab
http://forum.xda-developers.com/showpost.php?p=10605338&postcount=5
I haven't tried this method.

ok so we need to delete this "nv_data.bin.md5 and nv_data.bak.md5 "
do i need to delete that too : nv_data.bak
please let me know

This method just seem ridiculous to me. I just don't buy that you delete an important system file and pretend that all it does is sim unlock your tab. I would seriously think twice and make sure I have the /efs folder securely backed up in my PC b4 attempting to do that.
P_
p.s. nv.data.bak is a copy of nv.data.bin used by the system in case the original file gets corrupted. If you delete the .bin file there are good chances that it will be restored with the .bak one. But if you delete both ............. hmmm I am not quite sure in what kind of trouble you're putting yourself into. The .md5 files can be deleted with no problem, they will be regenerated on the next boot.

pakalrtb said:
This method just seem ridiculous to me.
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Click to collapse
And yet 100's of people, using caution have successfully done this.
As always, do your research, ask questions, then go forward.

probleem with i9000

Two brothers Jlexa S i9000
8 GB Anhzv suddenly imei
3g not working
And became a matter for Alhraih
Installed should Romat many but would be futile
Look for an original 5-Rom files
The problem can be dissolved
They say it comes with full Alrwamt file bot
If an end to the language of good looking sites in foreign file efs
Lift Balodn
Refused to receive the security device
Dath and for someone and try it and received it by imei Ouht
The second and worked as soon as I entered the market for returned and claimed everything to put it back
Vialit solution even if 3g and Engage Maedjl on the market for
Unfortunately, the translation Alsih where I Aatguen to English translation and these Aljojl

What?
10 char

I am so sorry for my Bad Language I want to file efs brief of the Model i9000

Try reflashing by stock firmware via Odin. In most cases you will get back imei. Do you have the efs backup with you?
Sent from my GT-I9000 using Tapatalk

Thanks for comment
No I do not have a copy of the file efs
You install programs but did not succeed

The /efs folder is a separate partition that holds the IMEI along with other things as device lock codes etc. This partition is not touched by firmware flashes, so reflashing a stock firmware will probably not help. If you messed up your /efs folder, you might have a serious problem if you don't have a backup.
My 2 cents...

Thank you for your answer
Yes, I did a survey of program file odin If I found a copy of this file is copied from another device will solve my problem and have the form tar

You can also try to rename files on your phone:
/efs/.nv_data.bak
to
/efs/nv_data.bin
I can't recall reading about copy /efs from another phone would help. But that could be just me not had time to read all posts in xda.
Sent from my GT-I9000

I did not find files in the device so that it just, is it another solution

O-T said:
You can also try to rename files on your phone:
/efs/.nv_data.bak
to
/efs/nv_data.bin
I can't recall reading about copy /efs from another phone would help. But that could be just me not had time to read all posts in xda.
Sent from my GT-I9000
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Click to collapse
I dont think a copy from another phone will work, but u could always ask someone to give u a copy of their efs and try, as i see it u dont have what to loose

Thank you my brother I hope to find a gall perhaps solve the problem because many simply told me that the solution of the problem is the
And also as a matter of experience I want a 5 Software files for Any Language

up up up up up

I hope you find the solution to your problem too

Thank you my friend and I also hope so and I know that each Mchklt solutions

Copying the /efs folder from another phone to your own will change your IMEI. Your phone and the original phone where the folder was copied from, will have the same IMEI then.
Please read the article in this link on the use of IMEI numbers before you might change it. I will definitely not give you a copy of my /efs folder...

My friend I know that it is wrong to take a copy of this file, but I now I can not take advantage of the telephone and the reason I am a victim of dealer deceiver has sold me a device and when you used to briefly stop working and when asked the dealer repair it to the Security Certificate refused to pick it up and when they put the machine when the agent of Samsung refused to receive the pretext that the device is not intended for the Arab States and the result was a project I did not find stolen

EFS folder?

Maybe a stupid question but i had Samsung devices for quite a while so i`am not so familiar with Nexus files but: Does the N4 have an EFS folder like Samsung has or is this data (imei, Mac Adress, etc etc) stored elsewhere in another map?

[Q] EFS Backup

Not sure whether or not this is actually a EFS backup. It just showed up in my External SD card and it's named 'efs.tar.gz' and it's only about 5kB. What does the EFS folder contain? I have folders such as bluetooth, WiFi, IMEI, carrier, etc.
Is it necessary to do a EFS backup nowadays?
How would I do an EFS backup?

emckai said:
Not sure whether or not this is actually a EFS backup. It just showed up in my External SD card and it's named 'efs.tar.gz' and it's only about 5kB. What does the EFS folder contain? I have folders such as bluetooth, WiFi, IMEI, carrier, etc. Is it necessary to do a EFS backup nowadays? How would I do an EFS backup?
Click to expand...
Click to collapse
Yes, DO make a backup of your EFS folder. Find the folder on your phone (I am away from my phone right now, but I believe it is a folder off of the root directory). You can easily find this folder (on a rooted phone) by using a file manager app-- then copy the entire folder and keep one copy of it on your SD card and keep ANOTHER copy of the EFS folder on your desktop computer or off-phone on a disk.
There are several threads here by folks who have lost their EFS folders or some setting on their phones, which can only be re-aligned by the data stored in the EFS folder. I believe at least some of the data is unique to your own phone, so it can't just be copied from another phone without some effects.
EFS folder seems like a small thing until it is gone. Then it really is a major pain in the neck to recover. MAKE YOUR OWN BACKUP COPIES of it now. Please search some threads --usingthe term EFS! -- and you will see more details about the effects of corrupt or missing EFS files.
Good luck!

markbc01 said:
Yes, DO make a backup of your EFS folder. Find the folder on your phone (I am away from my phone right now, but I believe it is a folder off of the root directory). You can easily find this folder (on a rooted phone) by using a file manager app-- then copy the entire folder and keep one copy of it on your SD card and keep ANOTHER copy of the EFS folder on your desktop computer or off-phone on a disk.
There are several threads here by folks who have lost their EFS folders or some setting on their phones, which can only be re-aligned by the data stored in the EFS folder. I believe at least some of the data is unique to your own phone, so it can't just be copied from another phone without some effects.
EFS folder seems like a small thing until it is gone. Then it really is a major pain in the neck to recover. MAKE YOUR OWN BACKUP COPIES of it now. Please search some threads --usingthe term EFS! -- and you will see more details about the effects of corrupt or missing EFS files.
Good luck!
Click to expand...
Click to collapse
Good advice, but I think more than just the EFS folder itself needs to be backed up in order to be able to restore EFS information to the phone if needed. Backing up or making a copy of the actual EFS "folder" is only part of the equation. TWRP variants usually offer an option to properly back up EFS and I have also seen several apps on the market, but I have not personally tried any of them. If anyone has any experience in methods to back up and restoring the EFS information to the phone please post your experience.

So basically all I have to do is copy the efs folder located in the /~ directory and memorize the permissions. And if anything happens I can just restore that folder and the set the permissions back?

emckai said:
So basically all I have to do is copy the esf folder located in the /~ directory and memorize the permissions. And if anything happens I can just restore that folder and the set the permissions back?
Click to expand...
Click to collapse
yikes. . . not so sure (anymore) that a copy/paste and a chmod will be enough. . . A quick search for recover ESF provides numerous results inside XDA.
It seems that there are several methods to doing an effective backup of ESF data (and by effective, it means more than our copy folders!). The below thread by @tamirda offers several techniques for the I9500 model of the S4! This ESF process does seem to be "kind of" phone-specific, but perhaps some processes are fungible among all models.
http://forum.xda-developers.com/showthread.php?t=2392632
From my quick (as yet unfinished) reading of some of the threads, it seems good to also know your IMEI #, independent of the ESF folder. Also --as @scott14719 stated--- there *is* more to it than just replacing the folder contents
@emckai, before you question, I was sanguine just having the folder backed up -now I am not. So thank you for asking this question! The answer is more than I thought!
Already I hit Play and downloaded/tried one of the programs. It loaded and "backed up" my ESF folder -then hot booted. However, I have not trashed my ESF data to test it so I will have to wait and see. (Some of the comments made it sound not so promising.)
But it also seems Odin can backup the ESF/IMEI data and restore it as well! I was going to see if Mobile Odin could do this too but I am running a 4.3 rom and Mobile Odin does not work so well on 4.3 yet..
Thanks. . .I have some more reading to do to protect my ESF :victory:
Edit: not sure, but perhaps that tar file for your ESF might be left there from an original Odin Flash of a kernel or rom. . .

Yeah I did some reading also around the XDA forums and some information found on Google but the information I found wasn't that useful; mostly because it was device specific.
After looking inside the EFS folder, each file had it's own permission which would cause a headache at the end.
Doesn't TWRP recovery have the option to backup the EFS folder? But it would be the same thing? Because apparently there are 2 blocks on the device where the IMEI information is stored and whenever something happens to the EFS folder or one of the blocks, it'll trigger on the Samsung boot screen and restore whatever is contained inside those blocks.
There is a lot of misinformation going around stating about EFS so I'm just left confused.

EFS backup and how important that file is

As I see often people having problems after flashing roms, I noticed that they always forgot one important thing to backup.
So I decide to write this article about the importants of the EFS as it is your lifeline of your phone.
Maybe you already have heard of the EFS partition, if not then keep on reading.
The EFS is a partition where the most important device infromation like Wi-Fi address, Bluetooth MAC address, IMEI address, etc is stored.
Without this data, you won’t be able to use your phone anymore and it's completely bricked.
So It’s extremely important to keep a local copy of your EFS partition as when the EFS is damaged then your phone has become useless and can only be restored with your personal EFS file.
You can't use an EFS file from somebody else as the file is your personal acces code to your hardware.
Hopefully you will never have to restore your EFS partition.
However, it’s never a bad idea to make a backup copy, especially if you flash allot of roms like I do.
Thanks to xenon92 for the APK version.
Thanks to lyriquidperfection for the window version

Reserved...

but i dont have an efs.img backup

aakpSolder said:
but i dont have an efs.img backup
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Click to collapse
I don't understand the question.
Technical you might never need it, but it's just incase something went wrong.
i have flashed my phone already hundred of times and it always went okay.
If you use the tool from Xenon92 then it will create your backup and you can copy it somewhere safe

Thank you
02mhr02