Backup and Restore EFS or IMEI on Samsung Galaxy Devices

Backup and Restore EFS or IMEI on Samsung Galaxy Devices

http://www.droidviews.com/how-to-backup-and-restore-efs-data-imei-on-samsung-galaxy-devices-did-you-do-it/[04/02/2014 23:24:49]

Jun 20, 2013 127 comments

How to Backup and Restore EFS / IMEI on Samsung Galaxy Devices Did You Do It?posted by Rakesh Shukla

Updated on 16th January, 2014

I am not sure how many of you visiting this page are familiar with the presence and importance of the EFS thing that we are going to talk about today! Actually, I often hear people requesting to offer a solution of a problem that makes them unable to make a call, send a message, access internet or any connectivity related thing. Imagine a mobile phone without a network connection at all and youll then realize



how horrible it is!

So, if EFS is so important a thing, it must be preserved so that you might be able to use all connectivity features of your device. This thing is found in all mobile devices which have an IMEI (International Mobile Equipment Identity) number assigned to it but the location and directory where it is stored might differ. On Samsung Galaxy devices, the IMEI and other connectivity data are stored in this particular folder that I have been mentioned several times so far.

What is EFS?Having read about the role of EFS on your Samsung Galaxy phone or tablet device, you must be a little more curious to know something more about it. EFS is a system directory that contains device specific essential information such as its IMEI, wireless device MAC address, baseband version, product code, system ID and NV data.

In case the EFS directory is corrupted or lost, your phone or tablet is sure to lose its IMEI number and wireless and network connectivity. You might ask how and why does the EFS data on your device might be lost or get corrupted? The answer is pretty simple and the reason might be a daring activity on your part. Sometimes flashing a custom Kernel (as reported by some users) and in most cases installing a custom ROM is responsible of the EFS data loss.

In this way, the EFS or IMEI loss is deeply related with what you do after rooting your Samsung Galaxy device. Keeping this thing in mind most of our ROM developers insert a script that automatically creates a backup of the EFS data on the external SD Card so that you might restore it back in case of loss or corruption. But it is certainly not wise to rely blindly on the wisdom of others. That is why, whenever we write installation tutorials for custom ROMs for Galaxy device, we warn users to backup EFS before indulging in any custom development activity.

Sadly, most people come to know about the thing called EFS only when it is too late. Once lost without being backed up, recovering it becomes very much like a wild goose chase. You might have heard or faced personally the issue when your device shows inability to mount EFS:

E: failed to mount / efs (invalid argument)

If you get this message on your phones screen, believe me you have got into a serious problem. Of course, there are ways to restore EFS data, but they are either not available for all devices online or they do not work at all.



It has been well said that prevention is better than cure and this saying hold quite true in this case too. Therefore, the first thing that one must do just after rooting and installing a custom recovery ones device is to backup the EFS and the stock rooted firmware. For more enlightening tips, do not forget to read the following article:

Things to Do Before and After Installing a Custom ROM

Reasons for EFS Data Loss or Corruption:Manually upgrading and downgrading firmware. Some users reported that they lost their IMEI during official OTA update.Installing a custom ROM or mod might mishandle system configuration, resulting in corrupt EFS.Any kind of bad flashing, clash between new and old kernel systems can also lead to the EFS data corruption and IMEI loss.

Tools and Methods to Backup and Restore EFS

EFS Professional:As the very title of this article says, we are going to tell about a very easy solution to backup the EFS on your Samsung Galaxy device. It is a simple but wonderful tool developed by XDA member LiquidPerfection that makes this job a plaything that can be done by anybody. The tool is called EFS Professional and it supports most Galaxy range of Android devices from Samsung.



The latest version of the software also supports Samsung Galaxy S4 International (GT-I9500), Galaxy S4 LTE (GT-I9505), AT&T S4 (SGH-I747), Verizon Galaxy S4 (SCH-I545) and others. I have also tested it on Galaxy S3, S2, Note 2 and Note 10.1. Besides, EFS Professional works with other Galaxy phones and tablets too.

Features of EFS Professional:Backup and restore partition images to and from in .tar.gz formatDetects backup archives automatically on the device and PC for hassle free restoringDevice filter support to allow displaying important partitions for various devicesExtract and read devices PIT file to ensure efficient and accurate backup and restore operationsCheck MD5 hash to verify integrity of data writtenFormat EFS to wipe all data and recreate partitionSamsungs Qualcomm devices supportOption to display various device, ROM and BusyBox related information at the click of a buttonRestore NV data from internal *.bak files if they exist to fix corrupt or incorrect IMEI numberRepair NV data file ownership to fix Unknown baseband and No signal issuesNV Backup and NV Restore options for US device variants only

Requirements:Before you can backup your devices EFS data safely to your device and PC both, here are a few things that must be taken care of:

A Samsung Galaxy Device with root access (custom recovery not needed). If you have not yet rooted your device, you can do it using our easy Rooting Tutorials.The EFS Professional tool: EFS_Professional_2.0.70_Release.zipMicrosoft .NET Framework installed on your computer: DotNetFx40_Full_setup.exeSamsung USB Drivers or Kies installed on your PC: DownloadInstall BusyBox app stable version 1.20.2 on your phone. Install the app on your phone open it. Tap on BusyBox version number and select BusyBox 1.20.2. Finally, then tap on Install and install it as Smart Install.Charge your device to ensure 60% battery level.Turn on USB Debugging mode on your phone or tablet from Developer Options on your device: Read This Guide

Using EFS Professional to Backup EFS:So, do you think you are ready for action now? Make sure you have made all preparations detailed above. If yes, lets get started now.

1. Extract the EFS_Professional.zip on your desktop.2. Connect your Galaxy device to PC using an USB cable. Make sure USB Debugging is enabled.3. Run EFS Professional.exe file as administrator. Doing this will prompt a popup window like shown below:



4. Click on EFS Professional.5. You will now see a new window. Once the device is detected, the lower part of the window will show the device

status and info such as model number, firmware version, root and BusyBox version, etc.6. Click on Backup tab and then click on Device Filter dropdown and select your phone model. If you do not see

it listed, click on Refresh button and then select it.7. EFS Professional will now show the system partition where the EFS data of your device is located. Check the

Select All box.

8. Finally, click on Backup and your EFS data will be backed up to your phone and the PC both. The backup on PC can be found in the EFS Professional folder inside EFSProBackup and it looks like this: GT-I9500_2013618_222210.tar.gz

How to Restore EFS/IMEI:



Having backed up your EFS data, you might take a calm breath and feel a sense of security but it is also important to be familiar with the method how you can restore it back to your Samsung Galaxy device in case you lose it.

1. Connect your device to PC2. Launch EFS Professional and click on Restore tab.3. Now click on the drop down menu in Restore options part of the window and select the previously backed up

file.

4. You can also format the currently corrupted EFS directly.5. Now click on Restore button.

Your Samsung Galaxy devices EFS/IMEI should now be restored back to its original location. Dia *#06# on your phones keypad to check it it has IMEI number or not.

Some Screenshots for Reference:



Download @Google Play

Backup EFS Using kTool:There is yet another handy utility for backing up the EFS and NV data on your Samsung Galaxy device. It is a free app and called kTool. Since it is a phone-based utility, it is easier to use. It supports almost all Samsung devices except the Qualcomm based LTE devices.

Needless to say that the app demands root access on your phone and besides backing up and restoring the sensitive EFS/IMEI/NV data, it can also perform various other tasks like-

Boot device into Download and Recovery modeDump and Flash kernel (and recovery) to /sdcard/zImageFlash recovery from /sdcard/recovery.bin

Note: In case you notice that your phones lockscreen is not working properly after backing up the EFS, go to Advanced Settings in the kTool menu and enable Alternate EFS Dump Method.

Download Latest kTool:

kToolDeveloper:

Price: Free

EFS Backup/Restore via Aroma Installer:You might be already familiar with Aroma. It is a custom recovery based installer that can install custom mods, ROMs and scripts. Unlike CWM or TWRP, Aroma Installer allows users choose from various options and provides customized installation. If you have a rooted phone with either of the above-mentioned recoveries installed on it, you



can download the Aroma Installer from below and backup your phones EFS data and, if needed, restore it later.

Downloads:Download one of the following Aroma installers-

EFS_Professional_2.0.68_Release.zip

DrKetan_MultiTool_AdvanceV5.zip

How to Use Aroma Installer:1. Copy the Aroma installer zip package to your phone.2. Turn off your phone and boot it into recovery mode. It can be done by holding down the Volume

Up+Home+Power buttons at the same time for about 4-6 seconds.3. When you are in CWM or TWRP recovery mode, go to install zip from sdcard> choose zip from sdcard and

then select the installer zip. TWRP users can simply tap on Install button and select the file.4. When prompted, confirm the action.5. Doing this will take you to Aroma Installer interface. Now all you have to do is to select the desired option and tap

the Next button.

Using Terminal Emulator to Backup/Restore EFS:The users who own a Samsung Galaxy device with root access but no custom recovery can use a free app called Terminal Emulator to backup and restore EFS on their device. Here is how it can be done:

1. Download and install Terminal Emulator app on your phone:




Android Terminal EmulatorDeveloper:

Price: Free

2. Open the app and grant SuperUser permission when you are prompted to do so.3. When you see the Terminal Emulator box, type the following command:

To backup EFS on external SD Card:

dd if=/dev/block/mmcblk0p3 of=/storage/sdcard/efs.img bs=4096

To backup EFS on external SD Card:

dd if=/dev/block/mmcblk0p3 of=/storage/extSdCard/efs.img bs=4096

4. Please note that all commands are case sensitive and even a minor mistake will hider the successful backup. Type the command line carefully.

5. If everything goes fine, your EFS data will be backed up to the internal or external storage of your device.6. Do not forget to save the backed up data to your computer or a cloud storage for safety and future use. You can

find this file as EFS.img on your device.

Now here is how you can restore the backed up EFS using Terminal Emulator:

Launch the app and type the following command depending on the location of the EFS.img file:

To restore EFS on external SD Card:

dd if=/storage/sdcard/efs.img of=/dev/block/mmcblk0p3 bs=4096

To restore EFS on external SD Card:

dd if=/storage/extSdCard/efs.img of=/dev/block/mmcblk0p3 bs=4096




Note:In case the terminal Emulator method (using the above commands) does not work for you, it might be due to the location of EFS partition on your phone. To fix that, you can try this:

Install a root file browser app:

Root BrowserDeveloper:

Price: Free

Open the app and go to dev/block directory and note down the exact path of EFS data files.Now edit the file path in the command line accordingly:

dd if=/dev/block/mmcblk0p3 of=/storage/sdcard/efs.img bs=4096

Backup/Restore EFS Using CWM/TWRP:You can also backup EFS using custom recovery tools like TWRP and Philz Recovery. I do not think you need a guide to do that. Here is a screenshot of TWRP from my Galaxy S4. The option is found under Backup head.



Backup and Restore EFS with Samsung Tool:Though this post already has several solutions for backing up and restoring EFS/IMEI on Samsung Galaxy devices, we keep looking for even easier methods. The Samsung Tool by ricky310711 from XDA forum is yet another smart tool that lets you backup your phones EFS in .img format to your phones internal or external storage. When required, you can restore the EFS using the same tool.



The backed up EFS file is saved to the following location Storage/ extSDCard/ Samsung Tools. We tested the tool on Samsung Galaxy S4 and Note 3 and it worked fineBesides, Samsung Tool also works as a reboot manager app. It lets you reboot your Samsung device into Download and Recovery modes without pressing the hardware keys.

Download Samsung Tool:Samsung_EFS_Tool_2.0.apk [mirror]

Apart from the tools discussed in this article, you can find many others that work with specific device models. You can try them too! With a hope that it proves helpful to the community, allow me to wind up here. If you have question or problem related to the topic, feel free to leave a comment below. Cheers!

Other Tips for Samsung Users:How to Downgrade Firmware on Samsung Galaxy Devices

How to Delete/Merge Duplicate Contacts on Your Phone

How to Enable Your Native Language on Samsung Galaxy Devices

source, 2, 3



Backup EFS Backup IMEI Galaxy Note 2 Tips and Tricks Galaxy S3 Tips and Tricks Galaxy S4 Tips and Tricks Recover IMEIRestore EFS Data Restore Lost IMEI Number Samsung Galaxy S4 Tips and Tricks

Published by: Rakesh Shukla

About the Author

A multi-faceted person with his heart and mind in English literature and technology, RakeshShukla is a teacher by profession and Android lover by vocation. He has penned down numerous books and has been a theme-maker, modder and a small-time developer of Android. He enjoys learning, discovering, growing and sharing the newest and latest trends in the world of Android. You can checkout his work here. Current Devices: Nexus 5, Galaxy Note 3 , HTC One, Galaxy Note 10.1, Xperia Z1, and iPhone 4S.

http://droidviews.com/ RakeshThere is none.

Wibisono TanRakesh any method to backup imei without root the phone?

AskhatHi, I use SGS4.So after upgrating firmware I lost EFS data and any mobile connection. IMEI request gives a result null/null. I tryed to use EFS Professional but after USB-connection was done the program shows only this message: Checking application environment Okay. Initializing ADB server(see image below) and I cant do any other actions with it. What does it mean? I need your help. Thanks.

DroidViews@Preetraj Sidhu Formatting does not wipe IMEI.

preetrajsidhu@Rakesh ok brom afraid tht by formatting my phnes imei will again become 0049xxx.???? wat to do ? and how to reboot after format ???????



http://hackcrack.in/ Prince Ramgarhiahey bro i want custom rom for xolo q1000 pls help me give me link here

http://droidviews.com/ RakeshTry this: remove your SIM, then format the device, put the SIM back and reboot the phone.

Preetraj Sidhui have msg centre no.bt m unable to save it

Thonneydid u backup? without backup, there is nothing you can do. send for repair or find someone with a box

ThonneySimply find a friend on similar network (e.g im on vodafone, so look for other vodafone user) and find their message centre no. itll be under messaging -> settings

http://droidviews.com/ RakeshHi Brad, seems you got TWRP finally. As for the EFS backup, you can use any of the methods but obviously the TWRP way is pretty easier.

Bradis it possible to backup imei with twrp recovery like the article says or should i follow the process in the first part of article

ALibut my mobile droped signal .. i tried but situation is same

Preetraj Sidhui do..bt it doesnt solve my prob..it says unable to save message centre no.

http://droidviews.com/ RakeshYes, you can.

Preetraj Sidhuokcan i reset now ???? r u sure bro that nothing happen to my imei no. ???

http://droidviews.com/ RakeshData/factory reset does not touch EFS partition.

Preetraj Sidhuhi bro.m afraid tht by wiping / reset cache my phnes imei will again become 0049xxx.???? becoz i restore my imei from shop.. nw wat to do ? may i take risk of factory reset or not ? thnks

http://droidviews.com/ RakeshTry rebooting your phone or install a different firmware.

ALiafter having flashed the 4.3 version found on Sammobile. SN and IMEI are correct. now what i do ?

ALiafter updating my note 2 in leaked 4.3 ..my phone not detect my sim .but imei is still present ? give me solution plzz



http://droidviews.com/ RakeshTry a data factory reset through recovery. Follow the Steps 10-14 from this guide:

Http://Droidviews.com/2013/How-To-Downgrade-Firmware-On-Samsung-Galaxy-Devices/

Preetraj Sidhuhi bro.nw i restored my imei back and everything is fine nw..bt m unable to send text msgs bcoz message centre no. is nt set.when m put tht no. in msg centre .it said unable to save msg centre no..nw wt to do ??? plz help thnks

http://droidviews.com/ RakeshDo you have a backup?

Preetraj Sidhuhello.M USING i9300.&.i flashed my firmware using odin.and NW it says unregistered on network and imei changed to 0049xxxxxxx.i tried lot of methods like azira patch..etcbt nobody work.nw my verson is 4.2.2..and my phone is rooted..nw what to do to restore my imei no. and make my NETWORK registered ??????? plz help reply THNKS

http://droidviews.com/ RakeshWithout backup, you will not be able to restore the EFS. There are shops with IMEI Repair tool. Contact them to fix it.

IrshaadKhanFlashed my i9300 international version phone with Cyanogenmod 10 and lost my network. Went back to stock rom and rooted it as I read it somewhere on internet that it would solve my no network issue. My imei number is corrupted and shows up as 0049***(generic number) but my serial number seems to be OK.

Christof BrodmannI was on Android 4.2.2 official Samsung firmware then i installed paranoid Android with android 4.3 i then reinstalled the official Samsung 4.3 when it came out after that the problem started .

Christof BrodmannI downloaded the latest Android 4.3 flashed it through Odin and it got stuck installing i then pulled the cable and reinstalled , it booted fine after that but i had no signal. I then read about it saying my IMEI number is wrong.

http://droidviews.com/ RakeshWhich device do you have?

Osmario JuniorMy phone doesnt pass the bootloader. I just have the Download Mode or adb sildeload and my PC to solve this problem, how to I proceed?

http://droidviews.com/ RakeshHow did you lose the IMEI?

IrshaadKhanHi Rakesh, even my phone is i9300 Exynos 4412 Quad so the NV item reader did not work. So is there other way to repair my imei which turned into a generic number(000049XXXXX)???

http://droidviews.com/ RakeshDid you recently downgrade or upgrade firmware?



Christof BrodmannHi, i am new to this, i have not backed up my EFS folder so i have no signal and my IMEI number is incorrect now start with 0049 i have tried so many options that i have looked on the net like xda developers, i have

reinstalled my phone using kies no luck but phone works but no signal, Oh forgot the mention my phone is GT-I9300 its not the Qualcomm processor its the Exynos 4412 Quad. How can i get my IMEI number back i have no back ups i have looked on the phone nothing. Please any one help . I have tried NV-items reader / writer but id does not detect my phone.

http://droidviews.com/ RakeshFor Note 3, try this guide instead: Http://Www.droidviews.com/Backup-And-Restore-Efs-Data-Imei-On-Samsung-Galaxy-Note-3/

ColanthN900A. Cant back up EFS, NVRAM, nandroid

I have water damage insurance on this POS

http://droidviews.com/ RakeshNo. More methods added, try them too.

IrshaadKhanThanks for your time, Will follow your advice..

http://droidviews.com/ RakeshNo, upgrading or downgrading firmware wouldnt help. One should always be careful and take precautions before indulging in such activities and thats why I always suggest people to backup things: Http://Www.droidviews.com/Things-To-Do-Before-And-After-Installing-A-Rom-Troubleshooter/

Ill try to look some solution, meanwhile also try this: Http://Www.droidviews.com/Backup-And-Restore-Lost-Imei-On-Samsung-Galaxy-Devices-Without-Root/

IrshaadKhanYes it didnt help. So still looking out for someone to guide me get my original default EFS folder back. I am presently on 4.0.4 Android version, so is there any need to upgrade my firmware or Android version?..

http://droidviews.com/ RakeshThats a very old tutorial of GB and ICS days and it would not work on new firmwares.

Wibisono TanRakesh using this need to use any box like stp box?

http://droidviews.com/ RakeshTry this tool too: Http://Www.droidviews.com/Backup-And-Restore-Lost-Imei-On-Samsung-Galaxy-Devices-Without-Root/

http://droidviews.com/ RakeshWell, that wont help as that directory contains the corrupted EFS data. What I meant was- can you see an EFS file on the sd card of your phone?

IrshaadKhanEFSPro backup folder screenshot

IrshaadKhanNot sure which directory it is in but when I open my root browser, I can directly see the efs folder along with cache, config, dev, mnt, root folders etc. Yes I do have but these tar files are the one which I backed up after I lost my



network using EFS Pro, so not sure if they are of any use. I am attaching screenshots of EFS folder to see if that helps

http://droidviews.com/ RakeshWhat is the location of this directory on your device? Do you also see a file something like this: efs_24Jun2013-0626.tar.gz

IrshaadKhanThanks for replying Rakesh, Yes I can and I also have contents in it like nv_data.bak etc, my mistake was that I did not back up my efs before flashing custom rom and this probably corrupted my imei but right now I have no idea as to how to recover the original imei.

http://droidviews.com/ RakeshCan you see a folder or file on your internal/external storage with efs in its name?

IrshaadKhanHi Rakesh, Need help Recently flashed my i9300 international version phone with Cyanogenmod 10 and lost my network. Went back to stock rom and rooted it as I read it somewhere on internet that it would solve my no network issue. My imei number is corrupted and shows up as 0049***(generic number) but my serial number seems to be OK. So I am not sure what do I do to get this thing sorted out.My baseband version is I9300DDLEA and Android version is 4.0.4. Serial number starts from RSXXXXXXX. I did not back up my efs folder before flashing custom rom. Can you please help me get back my imei number and network?

http://droidviews.com/ RakeshIt does not support low end devices. Use KTool or Galaxy Toolbox.

MPChPlease help me. i cant Backup EFS

EFS Pro dont find any partition :((((

My phone is Galaxy ACE(GT-S5830). without i;

AkiOrpheusDear Rakesh,

Still, no success! I have to try the latest N5100XXCMH2 update with 4.2.2 to see whether itll solve the issue. A friend will download it for me as my bandwidth is not enough for GBs :). I also found that my proximity sensor and vibration also not working. From XDA I learned that Proximity stores a calibration file in EFS folder, so I need to compare my EFS folder with a working one to see that it dont miss any files. Rakesh, will it be possible for you to help me here, I need a compressed .zip or a .tar file from a working Galaxy Note 8.0 GT-N5100 (this is the 3G version, not Wifi). If anyone else willing to help, can create a .tar backup of EFS by using these terminal commands (busybox should be installed) in a rooted GT-N5100:

su tar Zcvf /sdcard/efs_backup.tar.gz /efs

and remember open the .tar file in 7-Zip and delete nv_data.bak and nv_data.bin files, since these two files contain the IMEI of your device, using them on another phone is illegal, which Im not going to do, but its safe :).

A help is very much appreciated. Thank you.

AkiOrpheusDear Rakesh, Appreciate your reply. The TriangleAway is from the Chainfires official XDA thread, its 100% the exact same program as the paid version. Im going through many XDA threads on this no baseband



& IMEI issue, seems like many people are having it, and for some it happend just when trying to update via Kies on a clean stock device, even without rooting!! Im begining to doubt whether it is related to mounting the EFS, as my EFS data is intact.

Ill try your recommendations and will get back to you.All day banging my head on the no baseband wall.

http://droidviews.com/ RakeshHi Aki, Did you use the paid version of Triangle Away or got it from some third-party website? EFS is mainly associated with IMEI and network connectivity issues, its the modem used in the device that is responsible for WiFi connectivity.

One of our users solved a similar issue and you can find his solution below. If that does not help, I would recommend you to flash stock firmware on your device and check if product code and baseband are fixed. If they do, root it again and then try restoring the EFS.

Let me know.

AkiOrpheusDear Rakesh,

Recently I root my Note 8.0 GT-N5100 by CF-Auto Root. Then backup EFS by EFS Pro. Later I used Triangle Away to 0 the counter. However after that, in About Device, my Baseband version is unknown, so as my IMEI. But my Wi-Fi Mac address is there. So I tried to restore my EFS backup, and the EFS Pro says success, but the problem still the same. When I click the Device Info in the EFS Pro, it states Unknown for the Product Code, Hardware Version, and Baseband Version. Please help! Thank you.

http://droidviews.com/ RakeshDownload and install from here: Http://Www.droidviews.com/Download-Google-Apps-Gapps-For-Your-Android-Device-On-Gbicsjb/

Farrell HeliosThanks. Just one problem, how would I install Google apps? There is nothing here.

http://droidviews.com/ RakeshGlad to know that. Enjoy!

Farrell HeliosI have successfully installed Carbon ROM along with all the back up files. Thanks for all your help!

http://droidviews.com/ RakeshHi, You can also backup EFS using Backup option in TWRP. I would also recommend you to keep a copy pf EFS on computer too. You need to restore EFS only if you lose your phones IMEI. Yes, you can backup everything without computer. Read the root apps article. I gave you the link yesterday.

Farrell HeliosHey, does twrp back up the EFS as well? Am I able to restore it from there after wiping the phone for installing a ROM? Is it possible to back everything up without the need of a computer?

http://droidviews.com/ RakeshKeep the backup as precaution for future. I think it is a modem issue. Try a TouchWiz based rom to make sure if the problem is really real.

MikeI thought it might be because I cant send/receive calls or texts



http://droidviews.com/ RakeshHmm, then how did you conclude that your phone has EFS problem?

MikeYeah they both match

Matt MorrisTrying to install the Carbon 4.3 rom onto my GT-I9505 LTE and it appears to wipe the EFS partition.

Tried your process to back this up using EFS professional seems to work backs up my 4.2.2 EFS data OK. However the moment I flash and then go and try and restore EFS Professionial wont pick up my phone, the PC recognises that the phone is connected but not the software. Any suggestions?

http://droidviews.com/ RakeshTry to match the visible IMEI with your phones actual IMEI. Does it match?

MikeIm trying to restore the efs data/IMEI but the EFS Professional is not detecting the backup that I made. Also there is a number for the IMEI on my phone but I still cant send/receive calls or texts. Any help would be great, thanks By the way I have the Verizon Galaxy S3

nihalhey! i use a galaxy ace s5830i. can you please tell me what do i select from the device filter dropdown because my device isnt listed there . and if i select anything else i get an error saying an error occured while getting partition list! . ive tried using galaxy toolbox but that doesnt work either . please help me with this. thanks

Karthikeya PervelaHai iam using a samsung galaxy ace s5830i recemtly i flashed it with a jellyblast custom rom after installing that i lost my imei but fortunately i hav stock rom backup plz tell me a way to backup and restore efs partition i had tried galaxy tool box but it only backups but not restores and also i have tried efs pro tool but i got an error that error while getting partition list plz help me

http://droidviews.com/ DroidViewsGlad to know that, Gaurav!

Gaurav Prasharhi bro ive got it back thanks a lot for your help.what i did was(for others also to follow,only for gti9300):- 1)Took a backup of EFS via philz touch recovery.

2)Made a new folder named efs in sdcard ie sdcard/efs and put the extracted contents of previously backed up .tar file in it.the extracted contents were efs.img.

3)deleted the contents of efs folder in the root explorer.

4)connected via EFS PRO and used format EFS without checking rapair nv data from internal backup and repair unknown baseband.

5) after format efs was successful i chose the file for restoration which in the drop down menu gave only the previously backed up efs file(via EFS PRO only in .tar format) in device(earlier i had tried restoring through the file saved in my pc but no results) and then hit start and viola it was done phone rebooted and i got imeri back and started working.

thanks a lot and yes i used the newest version of EFS PRO and the .tar file upon extracting gave an efs.img file

Ranieri SilvaYes, I tried many ROMs including custom.

http://droidviews.com/ DroidViews



Have you installed some custom ROM?

Ranieri SilvaHi! Thanks! But in my case, my Galaxy I9300 doesnt inicialize anymore. It is looping, and when I inicialize by the CWM it shows the error with the EFS. Is there some option for me?

http://droidviews.com/ DroidViewsYes, EFS partition lies on internal system and therefore EFS Pro or any other app must have access to that partition of device to be able to modify it.

Busybox provides more freedom to the application so it is necessary too. You can use the previously backed up EFS/NV data while restoring.

Formatting has nothing to do options like md5 checksum or repair nv. They should be checked while restoring.

Also, try with the newer version of EFS Pro: Http://D-H.st/YSp

Gaurav Prasharso you mean to say i must root my s3 again and then use EFS PRO,in that case few questions 1) do i have to select the previous backed up file on my pc or device(both tar files) 2) is format efs required and repair nv from internal and check sum need to be checked before format or along with it? these are few irritating questions i know but plz help

http://droidviews.com/ DroidViewsYes, root is required. Also do not forget to install the BusyBox app as directed in the guide before trying.

Gaurav Prasharive a SGS3 GTI9300 and will i not require root access to use EFS PRO?

http://droidviews.com/ DroidViewsFormat the EFS partition that contains fake IMEI, check Repair NV data option and try restoring again.

Which device do you have?

Gaurav Prashari flashed back to the stock rom using odin and the baseband is normal once again but the imei is fake and root access is gone although efs back up in the form of tar file is still present one more thing apart from making a back up i had also copied the efs folder in one of my separate folder which is still present.what to do next?

Gaurav Prasharnothing happened although the phone went into factory mode with a yellow msh flashing on screen.mentioning few things.Ive however got rid of the msg on screen but the real issue is still persistent.may i request you to kindly give a step by step guide on how to use the nav repair and baseband repair check boxesplz

Gaurav Prasharsure thnks ill try it right now n get back to you.plz be available as you have been very helpgul

http://droidviews.com/ DroidViewsIf you are not having network signal, check the 3rd box too and restore it.

But format the old EFS first.

Gaurav Prasharplz then tell me should i check the md5 verification box and the repair unknown baseband and the repair nv from internal backup and then do a format and then restore in short which all boxes to tick



http://droidviews.com/ DroidViewsUse the Format EFS option under Restore Options in EFS Pro and then restore the backed up EFS.

Gaurav Prashardidnt get it plz elaborate plz thanks

http://droidviews.com/ DroidViewsClear the ols efs file first and then restore.

Gaurav Prashari restored using efs pro but baseband version is still unknown and imei is null??? plz help

gordon younggalaxy toolbox is no good either when you install custom roms, after backing up from stock rom, it says incompatable device so only way to get it back is to flash back to stock rom or a moded rom that doesnt lose lose your IMEI, yor k-TOOL dont work either lol, also says incompatable device

http://droidviews.com/ DroidViewsTry Galaxy Toolbox for that.

gordon youngdont work on galaxy ace gt-s5830i ????????????????????????????/

Cesar Cabrera D.For some reason Omega Rom doesnt work with UBUAMDE baseband. Dont know what to do in this case. Recently could flash the Adam Kernel to see if this helps

Cesar Cabrera D.The Cellphone Hardware model. For some reason the omega firmware doesnt match my phone hardware. I even flashed back the modem restore and the phone signal never came up.

http://droidviews.com/ DroidViewsWhat is ubuamde firmwre?

Fahadi dont know wats the probafter flashing omega or any custom rom or my stock rom my imei change to 004999..0000. but when i flash Pardus HD rom my imei come back to normalthats really annoyingany help regarding this issues. thanx

Cesar Cabrera D.Sorry to bother again but Can I use the omega firmware even if my phone is ubuamde firmwre?

Cesar Cabrera D.I did it but never restored the imei data on the cellphone so I had to flash the stock rom back. My question is if is necessary to use the format efs option on the efs proffesional? when the imei doesnt restore?

http://droidviews.com/ DroidViewsRoot the device and install Omega ROM. No harm will be done.

http://droidviews.com/ DroidViewsOmega automatically backups EFS data.

Cesar Cabrera D.I have a simcard locked Samsung i9500. Is there a way to flash a omega rom without loosing imei? I tried this software but I didnt format the efs option. Is that a must?



Fahadproblemi have omega v46 custom romi backed up EFS and restores aswell..but nothing change..imei still remain corrupted (004999010640000)plz help

http://droidviews.com/ DroidViewsGlad to know.

Fahadthanx..i just solved itwe just have to copy that file (EFS) to phone aswellthen the backup option appear..

Fahadhithanx for the postreally helped me to backup my EFS datai have one question, i have flashed a custom rom and now i want to restore my EFS data backbut when i click on Restore options, nothing comesits blankbut i do have a back on other folderbut it doesnt give me any option to select or findplz help me in this matterRegards

http://droidviews.com/ DroidViewsDid you backed up the IMEI or EFS data in the past? If not, I am afraid you will have to use the Octopus tool fix the problem or find a guy who has this tool.

Nelson Gregorio Martinez Santomy imei is 0049990106400001 and does not work could help me in this big problem that I have please friend, I hope your help please as soon as possible thank you very much in advance

http://droidviews.com/ DroidViewsNice to know.

Bruce LeeIssue solved! BusyBox shall be installed in advanced mode, which install much more packages.

Bruce LeeEFS Pro fails to create archive. Phone model: GT-I9300, device rooted by CWM 6.3.0.2 recovery (recovery reboot root option) SU is located on system/xbin busybox 1.20.2 installed by BusyBox installer JRummy Apps Inc. (symlink applet option), located on system/xbin I choose device filter: International Variants All was going well until the creation of the archive. Device was recognized correctly, efs.img created and located on sdcard, pit file located on PC. Can anyone help?

Bruce LeeEFS Pro fails to create archive. Phone model: GT-I9300 I choose device filter: International Variants All was going well until the creation of the archive. Device was recognized correctly, efs.img created and located on sdcard, pit file located on PC. Can anyone help?

sandeep nachuAfter starting efs professional, it says that it failed to start adb serverwhat does that mean?

http://droidviews.com/ DroidViewsNice to know that! Keep visiting!

Clifton PoeThat worked. I used the one for I9505.



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Thanks for all your help!

http://droidviews.com/ DroidViewsOkay, can you see any S4 model with Snapdragon chip? If yes, select that.

Clifton PoeI reinstalled efs pro using the link provided in your comment. Sch 1545 still isnt listed. I dont know what the deal is and what I would be doing wrong. If I cant use this, should I just copy and paste the efs folder?

http://droidviews.com/ DroidViewsHi Clifton, that might be a typo error. Download the latest version that supports all Qualcomm devices: Http://D-H.st/B9t

The post has been updated too.

Clifton PoeThank you. Last question. In your article it says sch-1535 is the verizon s4, but the verizon galaxy s4 is sch-1545. There is no sch-1545 in the device filter on EFS pro. There is sch-1535, however. Do I just use 1535? Sorry for all the questions. Im new to all this and am paranoid about messing up.

http://droidviews.com/ DroidViewsWhen it says checking device, you should see a popup screen on phones screen asking for authorization. Accept it from there are it should be okay.

Clifton PoeThanks. A problem Im having now is that it says I have to authorize with PC or something, and then it hangs on checking device, please wait, though it seems to identify everything. I did some research and it seems I have to update my sdk? Having trouble doing that. Any advice?

http://droidviews.com/ DroidViewsYes, the older version is more stable.

Clifton PoeI see on busybox that there is a later version, 1.21.0..should I still install the 1.20.2?

HoHo AaShengThanks dude..really helpful

http://droidviews.com/ DroidViewsThanks for the appreciation!

haylo75This is a nice, easy to follow IMEI backup guide!



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Backup and Restore EFS or IMEI on Samsung Galaxy Devices