How to return back Samsung Galaxy S3 to its original stock firmware

Have you ever done enough some modding like rooting, installing any unofficial or modified firmware of your Samsung Galaxy S3 and recently decided to return or revert back your phone to it’s original factory default stock firmware this guide will show you how exactly to do it.
This is also been useful in some other purposes like for fixing soft-bricks if somehow you messed up somewhere and end up with a soft bricked Galaxy S3, this guide might also help you to recover your Galaxy S3 and bring it back to life in no time as long as you can still access the download mode.

Step by step procedure on how to manually install or restore back the original stock firmware ROM on Samsung Galaxy S3.

A Very Important Things you need to do before Flashing Galaxy S3 Stock ROM

– Make sure that your Galaxy S3′s battery is fully charge.
– Stock ROM packages comes in two formats the ‘Full-Wipe’ (delete your stored data after flashing) and the ‘Non-Wipe’ (it doesn’t delete your phone’s stored data) but it is highly recommended to make a back up all important files stored from your phone’s internal memory – contacts, messages, etc.  before flashing no-matter if it is Full-WIpe or Non-Wipe,  just to be safe and ensure that your stored data are in  safe  if something went wrong during the flashing process.
– Remember or back up the APN settings of your device. ( This only done if you try to install other regions stock ROM.
– Use a PC or laptop that runs in Windows OS, with a good and perfectly working USB serial port.  Odin will not work on MAC OS.
– Use the supplied USB cable for your Galaxy S3.
– Enable USB debugging from your phone’s settings. Go to Settings > Applications > Development, and tick the box that says ‘Enable USB Debugging’.
– Do a “Hard Reset” if you have a lot of 3rd party applications installed from your phone, this is useful to gain a smooth flashing. (Just make sure that you already back up all your important files before resetting your device.
– Ensure that KIES is closed and not running in the system tray! Kies will interrupt and doesn’t like Odin, it will block you from flashing.

What is a Stock ROM?

Stock ROMs are the firmware that has been released from Samsung Kies official firmware server. These are being pulled from Kies by an Android firmware experts and carefully re-bundled it to make it flashable by using Odin flasher tool, via CWM and some prepared tool like chainfires’ Mobile Odin. This guide here tackles an Odin flashable stock ROM only, you might also see other methods like flashing via CWM and Mobile Odin (which is to be added soon).
Stock ROMs contains the binary and image files of the whole software packaged, like these:
* Sbl.bin
* cache.img
* factoryfs.img
* hidden.img
* modem.bin
* param.lfs
* zImage
Inside the stock ROM bundled, those binary and images files are packed in three different formats.
Some full packaged stock ROM comes in multiple package this includes with BOOTLOADER image and PIT files, but in flashing it’s been safe not to use these files.
PDA – This the software/firmware build number version and consists to a code of numbers and letters
CSC – (Consumer Software Customization) Refers to the specific country or carriers for that said firmware is being build.
This where it contains the default settings of each specific geographical region, carrier network providers and network data connections.
Phone – This renders the specific Baseband or device modem data (GSM/HSPDA).
PIT – the PIT file refers as ‘Partition Information Table’. This is only useful for fixing bricked devices if somehow something changed with the partition table layout of the phone’s system memory. But in normal flashing, you should not use this file, or you may screw up your phone if handed carelessly.

FAQ about flashing stock ROM

Q: Does it safe to flash stock ROM?
A: There is a risk danger in flashing firmware either original stock ROM and or custom ROMs on the device. Any unwanted interruption occurred will cause your device into softbricks. If it is your first time heard about this method,  it is highly recommended to search more and learn about flashing stock ROM before you proceed.
Q: Does Flashing will remove all my data stored on the device.
A: Yes and NO. There are two types of stock ROM, the wiped and non-wiped version. It is highly recommended that you should back-up all your important data stored in the phone’s memory like contacts, messages before flashing.
Q: Do I Need to ROOT or UNROOT my phone before flashing stock ROM?
A: NO need to root or unroot yor device, but you will loose root once flashing is made. So, you need to re-root your device again.
Q: Does Flashing stock ROM to my phone will erase the network lock?
A: NO. Your network (or SIM) lock will still remain active.
Q: Does Flashing stock ROM will remove root on my phone?
A: Yes. If you currently have rooted, your phone will return back to original factory settings after flashing. You need to re-root again to install any 3rd party applications.
Q: Does flashing an operator specific firmware will restrict my open phone to that operator’s network?
A: NO. Your phone still remain open for any Operator SIM. Operator specific builds usually containing “only specific country or carrier provider” logo, bloatwares, wallpapers and/or browser settings, etc.

Disclaimer: We shall not be held responsible if anything happens to your device by following this guide. You may proceed at your own risk, your phone is not a toy for us, it is your own personal property, it is up on you to decide on what and how to do about it.

Update: (Important Note) If you are on Android 4.3 firmware either custom base or official stock as long it already includes the 4.3 bootloader you should only flashed the 4.3 firmware. DO NOT INSTALL BACK the old 4.0.4,4.1.1 and 4.1.2 firmware builds. Odin will not let you through into flashing and you’ll probably only receive a “authentication error”. The 4.3 update has been added with a secured bootloader. If your device running on 4.3 based ROM you should ask your ROM developer first if it’s safe to return back to the stock 4.3 update. So please proceed with caution to keep your device safe. 

Step 1: Download the needed tools for flashing

Odin Flasher Tool
(choose one)
Download Odin3_v3.07 flasher tool for Samsung galaxy S3

Samsung Galaxy S3 USB Driver
(only needed if you haven’t installed Kies on your PC)
Kies 2 USB Driver
Kies 3 USB Driver

Download Samsung Galaxy S3 USB Driver

Grab your Samsung Galaxy S3 Original Firmware or Stock ROM according to your phone’s Country/Carrier of origin. I can’t put it all up here, so you may find the most latest build, Google is your friend.

Update: Important Note!
Once your phone currently runs on  a firmware or ROM that is based on Android 4.4.2 you must only revert back to 4.4.2 stock firmware, same goes on if you have 4.3 Jelly Bean running then only install back the 4.3 stock firmware.  From now on, we cannot downgrade back to older software build version due to the new bootloader security policy. So again DO NOT DOWNGRADE back to the old software update.

GT-I9300 (Europe/Australia/New Zealand/Asia/Middle East/Latin America) Start your search here for the GT-I9300

SCH-I535 (U.S Verizon) (You also need to re-lock the bootloader if you want completely restore back to stock)

June 2014 KitKat 4.4.2 OTA update: SCH-I535_VZW_I535VRUDNE1_I535VZWDNE1
December 2013 Jelly Bean 4.3 OTA update: SCH-I535_VZW_I535VRUCML1_I535VZWCML1
December 2012 Jelly Bean 4.1.2 OTA update: SCH-I535_VZW_I535VRBMF1_I535VZWBMF1
August 2012 ICS 4.0.4 Update: SCH-I535_VZW_I535VRBMB1_I535VZWBMB1
May 2012 Factory Stock: SCH-I535_VZW_I535VRALF2_I535VZWALF2

SGH-1747 (U.S AT&T)
June 2014 4.4.2 KitKat  I747UCUFNE4 (stock firmware unavailable)
Novemeber 2013 4.3 update I747UCUEMJB (see here on how to get back to stock and update to 4.3)

December 2012 Jelly Bean 4.1.1 Update: SGH-I747_ATT_I747UCDLK3_I747ATTDLK3
July 2012 ICS 4.0.4 Update: SGH-I747_ATT_I747UCALG1_I747ATTALG1
May 2012, Factory Stock: SGH-I747_ATT_I747UCALEM_I747ATTALEM

SGH-I747M (Canada)
Bell (also works on Virgin Mobile)
June 2014 4.4.2 KitKat update BMC_I747MVLUFNE6December 2013 4.3 update BMC_I747MVLUEMK5_I747MOYCEMK5
June 2013 Jelly Bean 4.1.2 Update: SGH-I747M_BMC_I747MVLDLF1_I747MOYCDLF1
December 2012 Jelly Bean 4.1.1 Update: SGH-I747M_BMC_I747MVLDLK4_I747MOYCDLK4
August 2012 ICS 4.0.4 Update: SGH-I747M_BMC_I747MVLALH1_I747MOYCALH1
May 2012 Factory Stock: SGH-I747M_BMC_I747MVLALE8_I747MOYCALE8

June 2014 4.4.2 KitKat update RWC_I747MVLUFNE6
December 2013 4.3 update RWC_I747MVLUEMK5_I747MOYCEMK5
June 2013 Jelly Bean 4.1.2 Update: SGH-I747M_BMC_I747MVLDLF1_I747MOYCDLF1
December 2012 Jelly Bean 4.1.1 Update: SGH-I747M_RWC_I747MVLDLK4_I747MOYADLK4
August 2012 ICS 4.0.4 Update: SGH-I747M_RWC_I747MVLALH1_I747MOYAALH1
May 2012 Factory Stock: SGH-I747M_RWC_I747MVLALE8_I747MOYAALE8

June 2014 4.4.2 KitKat update TLS_I747MVLUFNE6
December 2013 4.3 update TLS_I747MVLUEMK5_I747MOYCEMK5
June 2013 Jelly Bean 4.1.2 Update: SGH-I747M_BMC_I747MVLDLF1_I747MOYCDLF1
December 2012 Jelly Bean 4.1.1 Update:  SGH-I747M_TLS_I747MVLDLK4_I747MOYBDLK4
August 2012 ICS 4.0.4 Update: SGH-I747M_TLS_I747MVLALH1_I747MOYBALH1
May 2012 Factory Stock: SGH-I747M_TLS_I747MVLALE8_I747MOYBALE8

June 2014 4.4.2 KitKat update BWA_I747MVLUFNE6
December 2013 4.3 update BWA_I747MVLUEMK5_I747MOYCEMK5
June 2013 Jelly Bean 4.1.2 Update: SGH-I747M_BMC_I747MVLDLF1_I747MOYCDLF1
December 2012 Jelly Bean 4.1.1 Update: SGH-I747M_BWA_I747MVLDLK4_I747MOYCDLK4
August 2012 ICS 4.0.4 Update: SGH-I747M_BWA_I747MVLALH1_I747MOYCALH1
May 2012 Factory Stock: SGH-I747M_BWA_I747MVLALE8_I747MOYCALE8

June 2014 4.4.2 KitKat update KDO_I747MVLUFNE6
December 2013 4.3 update KDO_I747MVLUEMK5_I747MOYCEMK5
June 2013 Jelly Bean 4.1.2 Update: SGH-I747M_KDO_I747MVLDLF1_I747MOYCDLF1
December 2012 Jelly Bean 4.1.1 Update: SGH-I747M_KDO_I747MVLDLK4_I747MOYCDLK4

June 2014 4.4.2 KitKat update FMC_I747MVLUFNE6
December 2013 4.3 update FMC_I747MVLUEMK5_I747MOYCEMK5
June 2013 Jelly Bean 4.1.2 Update: SGH-I747M_FMC_I747MVLDLF1_I747MOYCDLF1
December 2012 Jelly Bean 4.1.1 Update: SGH-I747M_FMC_I747MVLDLK4_I747MOYCDLK4

SPH-L710 (U.S Sprint)
June 2014 4.4.2 KitKat update SPH-L710_SPR_L710VPUDND8_L710SPRND8November 2013 Jelly Bean 4.3 Update: SPH-L710_SPR_L710VPUCMK3_L710SPRMK3
April 2013 Jelly Bean 4.1.2 Update: SPH-L710_SPR_L710VPBMD4_L710SPRMD4
December 2012 Jelly Bean 4.1.1 Update: SPH-L710_SPR_L710VPBLJ7_L710SPRLJ7
May 2012 Factory Stock: SPH-L710_SPR_L710VPALEN_L710SPRALEN

SGH-T999 (U.S T-Mobile) 
March 2014 4.3 JB update SGH_T999_T999UVUENC2_T999TMBNC2December 2013 4.3 Jelly Bean Update: SGH-T999_TMB_T999UVUEMJC_T999TMBEMJC
December 2013 4.1.2 Jelly Bean Update: SGH-T999_TMB_T999UVUEMD5_T999TMBEMD5
December 2012 Jelly Bean Update: SGH-T999_TMB_T999UVDLJC_T999TMBDLJC
December 2012 Jelly Bean Update: SGH-T999_TMB_T999UVDLJA_T999TMBDLJA
November 2012 ICS 4.0.4 Update: SGH-T999_TMB_T999UVALJ4_T999TMBALJ4

August 2012 ICS 4.0.4 Update: SGH-T999_TMB_T999UVALH2_T999TMBALH2
May 2012 Factory Stock: SGH-T999_TMB_T999UVALEM_T999TMBALEM

SGH-T999L LTE/4G (U.S T-Mobile)
March 2014 4.3 update T999L_TMB_T999LUVUBNC1_T999LTMBBNC1
December 2013 4.3 Update SGH-T999L_TMB_T999LUVUBMK4_T999LTMBBMK4
Feb 2013 4.1.2 Update SGH-T999L_TMB_T999LUVAMB7_T999LTMBAMB7

SGH-T999N  (U.S T-Mobile)
March 2014 4.3 update T999N_TMB_T999NUVUBNC1_T999NTMBBNC1
Dec 2013 4.3 Update SGH-T999N_TMB_T999NUVUBMK7_T999NTMBBMK7
Feb 2013 4.1.2 Update SGH-T999N_TMB_T999NUVAME4_T999NTMBAME4

SGH-T999V (Canada)
June 2014 4.4.2 KitKat update GLW_T999VVLUFNF1
4.3 update  T999V_GLW_T999VVLUEMK5_T999VYVLEMK5
4.1.2 update  T999V_GLW_T999VVLDMF2_T999VYVLDMF2
4.1.1 update  T999V_GLW_T999VVLDLL1_T999VYVLDLL1
May 2012 Factory Stock: SGH-T999V_GLW_T999VVLALE6_T999VYVLALE6
June 2014 4.4.2 KitKat update MCT_T999VVLUFNF1
4.3 update  T999V_MCT_T999VVLUEMK5_T999VYVLEMK5
4.1.2 update  T999V_MCT_T999VVLDMF2_T999VYVLDMF2
4.1.1 update  T999V_MCT_T999VVLDLL1_T999VYVLDLL1
May 2012 Factory Stock: T999V_MCT_T999VVLALE6_T999VYVLALE6
June 2014 4.4.2 KitKat update VTR_T999VVLUFNF1
4.3 update  T999V_VTR_T999VVLUEML2_T999VYVLEML2
4.3 update  T999V_VTR_T999VVLUEMK5_T999VYVLEMK5
4.1.2 update  T999V_VTR_T999VVLDMF2_T999VYVLDMF2
4.1.1 update  T999V_VTR_T999VVLDLL1_T999VYVLDLL1
May 2012 Factory Stock: T999V_VTR_T999VVLALE6_T999VYVLALE6
June 2014 4.4.2 KitKat update ESK_T999VVLUFNF1
4.3 update  T999V_ESK_T999VVLUEMK5_T999VYVLEMK5
4.1.2 update  T999V_ESK_T999VVLDMF2_T999VYVLDMF2

You may also find other stock firmware links at

Step 2: Extract the downloaded stock ROM

You need to extract the downloaded file which is packed in zip or rar files, so that you’ll get the tar.md5 file.

Step 3: Run and Configure Odin

Run Odin downloader Odin3_v3.04 on your PC desktop. Watch out the check-boxes options on the right top of Odin, ensure that the ‘RE-PARTITION’ is unchecked, only  the ‘AUTO-REBOOT and ‘F.RESET TIME’ checkboxes are both remained checked.

Step 6: Reboot your Galaxy S3 into Download Mode

To reboot the Galaxy S3 into  download mode , you need to turn the power off.  After it completely shut off,  just  press and hold the Volume Down key,  Home button and the Power ON/OFF button simultaneously.

You should then prompted into a warning screen and asking you  to press volume up if you want to continue or volume down to cancel, just simply press volume up to get into download mode. The download mode then displays an Android robot and say’s “Downloading.. Do not turn off target!!”

Step 5: Connect your Phone to PC or Laptop

Once you already reboot the phone in download mode,  simply connect the phone to your PC or laptop USB.
In Odin window – the ID:COM box will turn to blue color and indicates the COM port number and a word “Added” on a log box will prompt you that the device is already detected or recognized by Odin.

Your COM port number might be different from mine. If you do not see a COM port number then there’s something missing or wrong. You may read again from the top of this post.

Step 6: Load the binary .tar.md5 file

Single Packaged Stock ROM
If the stock ROM is pack in One .tar.md5 file only the PDA, CSC and Phone modem are already included to it. Now, you need to just simply click on the PDA button, then browse to the folder where the .tar or .tar.md5 you have previously extracted and then select and load it.
Just like this image below, I used United Kingdom unbranded Galaxy S3 stock ROM on this guide, so it came as I9300XXLE8_I9300OXAALE8_I9300XXLE8_HOME.tar.md5. Build numbers varies on each specific country and carrier providers, geographical region and network CSC (Consumer Software Customization) codes.

Note: Do not put a ‘PIT’ file.
Stock ROM with Multiple Files with PDA, CSC and PHONE files
If the files came with three individual .tar like PDA, CSC and PHONE
packages, you’ll need to load each specific file formats on each designated buttons.
PDA button – select the .tar file associated with a name CODE after the build number like – CODE_I9300xxxxx_xxxxx_.tar
CSC button – .tar file associated with a name ‘CSC’ after the build number like – CSC_XXX_I9300xxxxx_xxxxx_.tar
PHONE button – .tar file associated with a name ‘MODEM’ after the build number like – MODEM_I9300xxxxx_xxxxx_.tar

Note: Again, DO NOT load or put a ‘PIT’ file.

Step 7: Start Flashing or Installing the stock ROM

Once if all set and ready to fire-up, hit the “START” button in Odin to begin flashing the stock ROM.
Do not ever interrupt the phone while already in flashing progress, like disconnecting the cable or turning off the device. Just wait until it completely finish.

Step 8: Watch out for the word PASS!!

When the Stock ROM installation successfully completes, you will then see a word “PASS” in Odin. This indicates that the flashing was already finish, and on the log box it says “All threads completed. (succeed 1 / failed 0)”. The phone will just then automatically reboot, then it’s time to remove it from PC or laptop USB connection.

Confirm your fresh firmware installed by typing *#1234# or
Go to Settings>About Phone>Firmware info.
You can also do factory reset by dialing *2767*3855#.
Check and reconfigure your APN settings when data networks connection issues encountered. This only happens if you installed other regions/provider stock ROM.

Possible errors that you may encountered, this is based on my own experience while flashing stock ROM on Samsung Android devices. These are just a few hints on how to resolved it.

Q: I got an error message that says “Set-up connection Failed” ?
A: 1. Check your USB connection from the phone to PC,
2. Connect to another PC USB port
3. Check and try to another USB cable
4. Re-install the USB driver.
Q: Odin just suddenly stuck in the middle of nowhere while in flashing progress, It isn’t responding at all?
A: Check for possible program that might interrupt the process, like disabling the anti-virus and closing any running programs.
Try to use another PC or laptop,
Q: I experienced bootloop or the phone just stuck on Welcome Logo (phone always stop at bootanimation) and it won’t boot normally?
A: You can fix it via recovery mode option, do this:
Boot in recovery mode
1. Press and hold Volume Up, Home and Power button.
2. Use volume keys to select, Up and Down and Power or Home key to select the option
3. Select “Wipe Data/Factory Reset” using the Home button.
4. Next select the “Wipe Cache Partition”
5. Lastly, select “Reboot System Now” to reboot your Galaxy S3 in Normal mode.

That’s it!
Anymore questions? leave it on the comment form below…

10 thoughts on “How to return back Samsung Galaxy S3 to its original stock firmware”

  1. Question! I rooted my Rogers Samsung Galaxy S3, it was 4.1.1. If I restore do I need to start from factory update? and work my way up by updating? Or can I just flash directly to stock 4.1.1?<br /><br />Sorry if it&#39;s a dumb question, just want to be sure.

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