How to Unbrick or Restore Samsung Galaxy S3 GT-I9300

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Looks like you just got unlucky in your little Galaxy S3 hacking adventures — that is, little things like rooting, custom recoveries and custom ROMs — and now, you have a bricked device in your hand.

Well, what we can do now is try to restore your Galaxy S3 back to stock using a firmware so that all bad partitions on the device are fixed and it doesn’t bootloops and restarts normally.

And well, depending on what you were trying to do, and more importantly how, it could either be soft-bricked or hard-bricked — in latter case, as sad as it is, you maybe out of luck, man!

What’s Hard-brick and Soft-brick?

Even though rare, and when you are like set to be doomed, your Galaxy S3 might get hard-bricked. In which case, the Galaxy S3 won’t boot into download mode — it won’t respond to key combinations you are trying to make it to boot normally or to download or recovery mode.

Hard-brick results in one dead Android device. Yes, it’s sick, and worrying. You may have to look for a JTAG service locally; the person with good knowledge of that may be able to revive it. Oh, you can also try using USB Jig (look on ebay, perhaps!) to reboot the Galaxy S3 into download mode, but it may or may not work!

Hard-brick is rare, it may happen only when power supply gets disturbed of computer and/or Android device when something is being installed/updated on the device. Or, when you totally mis-do things totally recklessly. That’s why you have to be very careful with even the easiest steps.

Let’s see soft-brick now. Normally, a rick is a soft-brick, which means your device isn’t completely dead, that it is just not able to boot normally and gets stuck somewhere. And, download mode is working.

How to identify bricked Galaxy S3?

If your Android device can boot into download mode, then it means it’s a soft-brick. If it cannot, then it’s hard-bricked.

Cases of soft-brick:

  • Bootloop: Your Galaxy S3 is not restarting properly and gets stuck at logo, and reboots again and again on it. Mostly occurs when you flash something bad.
  • Corrupted but working: Your Galaxy S3 can’t power On, but is entering the Download mode and/or Recovery mode on pressing the key combinations. That is, it’s responding to key combos, at the least.
  • Any other case: As it doesn’t matter what happened, as long as you can access Download mode using the key combos specified in the unbrick Galaxy S3 guide below, you’re good — no reasons to worry!

Solution?

Just install the firmware using the guide below and your Galaxy S3 shall be up and running coolly soon enough! you must be able to enter download using the key combinations specified in the guide below.

Cases of Hard-brick:

  • Well, if you can’t enter download mode using the key combinations specified in the guide below, you got a worry — your device is hard-bricked. You can’t repair it yourself unless you are able to reboot it into download mode.

Solution?

You can try USB Jig to enter Download mode but there is no guarantee it would work. Your last hope is JTAG: find a local service provider who can us the JTAG for you and revive your dead hard bricked Galaxy S3. You can use Google to buy JTAG and try it yourself but we don’t recommend it at all, at it requires the skills of a knowledgeable person in Electronics.

Let’s see now how to unbrick or restore or fix a bricked Galaxy S3.

How to Restore Samsung Galaxy S3 to Unbrick and Fix it

  WARNING!

Warranty may be void of your device if you follow the procedures given on this page.

You only are responsible for your device. We won’t be liable if any damage occurs to your device and/or its components.

  SAMSUNG GALAXY S3 GT-I9300 OFFICIAL JELLY BEAN 4.3 FIRMWARE

Before you begin with guide instructions below, make sure your android device is adequately charged — at least 50% battery of the device.

  STEP 0: CHECK DEVICE MODEL NO.

To make sure your device is eligible with this, you must first confirm its model no. in ‘About device’ option under Settings. Another way to confirm model no. is by looking for it on the packaging box of your device. It must be GT-I9300!

Do not use the procedures discussed here on any other Galaxy S3 (including the Galaxy S3 variant at T-Mobile, Sprint, US-Cellular, AT&T, Verizon and other International LTE variants) or any other device of Samsung or any other company. You have been warned!

  STEP 1: BACKUP YOUR DEVICE

Back up important data and stuff before you start playing around here as there are chances you might lose your apps and app-data (app settings, game progress, etc.), and in rare case, files on the internal memory, too.

For help on Backup and Restore, check out our exclusive page on that linked right below.

 ANDROID BACK UP AND RESTORE GUIDE: APPS AND TIPS

  STEP 2: INSTALL LATEST DRIVER

You must have proper and working driver installed on your windows computer to be able to successfully flash stock firmware on your Samsung Galaxy S3. In case you’re not sure, follow the link below for a definitive guide for installing driver for your Galaxy S3 on your computer.

 SAMSUNG GALAXY S3 DRIVERS INSTALLATION GUIDE

   STEP 3: INSTALLATION INSTRUCTIONS

  DOWNLOADS

Download the Odin zip file and firmware file given below. Transfer both Odin and firmware file to a separate folder on your computer just to keep things tidy.

  ODIN ZIP FILE

DOWNLOAD LINK | File name: Latest Odin3 v3.09.zip (951 KB)

  FIRMWARE ZIP FILE

DOWNLOAD LINK | File name: I9300XXUGMK6_I9300OXAGMK6_BTU.zip (873.3 MB)

  STEP-BY-STEP GUIDE

  Example video: If you haven’t used Odin before to install a stock firmware or anything else, then we suggest you first watch a video of that to get familiar with the process. The video demonstrates flashing of CWM Recovery on Galaxy S3, but since the procedure is same for flashing stock firmware also, the video will helpClick here to watch the video

Important Note: Backup important files stored on internal SD card of your device, so that in case a situation arises requiring you to do a factory reset after flashing stock firmware, which might delete internal sd card too, your files will remain safe on PC.

  1. Extract/Unzip the Odin zip file, Latest Odin3 v3.09.zip on your computer (using 7-zip free software, preferably) to get this file: Odin3 v3.09.exe
  2. Extract/Unzip the Firmware zip file, I9300XXUGMK6_I9300OXAGMK6_BTU.zip on your computer (using 7-zip free software, preferably) to get this file: I9300XXUGMK6_I9300OXAGMK6_I9300XXUGMK6_HOME.tar.md5
  3. Move the friwmare file, tar.md5, in the same folder in which you extracted Latest Odin3 v3.09.zip (Just for your convenience, that is). So, now you’ll have the following files in that folder:
    • Odin3 v3.09.exe
    • I9300XXUGMK6_I9300OXAGMK6_I9300XXUGMK6_HOME.tar.md5
  4. Disconnect the Galaxy S3 from PC if it is connected.
  5. Double-click the Odin3 v3.09.exe file to open Odin.
  6. Boot your Samsung Galaxy S3 into Download Mode:
    • Power off your phone first and wait for 6-7 seconds after display is off
    • Press and hold these 3 buttons together until you see Warning! screen: Volume Down + Power + Home
    • Press Volume Up now to continue to Download Mode
      galaxy-s3-download-mode
  7. Connect your Galaxy S3 to PC. Odin window will show an Added!! message in bottom left box. Odin’s screen would look like this:
    Odin 3.09 - Samsung-Galaxy-Odin-Device-Added-Screenshot
    If you don’t get the Added! message, here are some troubleshooting tips:

    • Make sure you have installed driver for Galaxy S3 as said above in ‘Before you begin..’ section.
    • If you have already installed driver, then uninstall them and reinstall back.
    • Connect using a different USB port on your PC.
    • Try a different USB cable. The original cable that came with your phone should work best, if not, try any other cable that’s new and of good quality.
    • Reboot phone and PC and then try again.
  8. Load the firmware file (extracted in Step 1) into Odin as instructed below:
    • Click on the AP button on Odin and select the I9300XXUGMK6_I9300OXAGMK6_I9300XXUGMK6_HOME.tar.md5 file (from step 1). Your Odin window should look like the screenshot below:
      Samsung Galaxy S3 stock fw 4.3 odin
  9. Now in the Option section of Odin, make sure that Re-Partition box is unchecked. (Auto Reboot and F. Reset Time boxes remain checked, while all other boxes remain unchecked.)
  10. Double check the above two steps.
  11. Click the Start button to begin flashing stock firmware on your Samsung Galaxy S3 GT-I9300, and wait until you see a PASS! message in Odin’s top left box.
  12. When you get PASS! message, your phone will restart automatically. You can then disconnect your phone from PC.
    Odin 3.09 - Samsung-Galaxy-Odin-PASS-screenshot

If you see FAIL message instead of the PASS in Odin’s top left box, that’s a problem. Try this now: disconnect your Galaxy S3 from PC, close Odin, remove phone’s battery and put it back inside in 3-4 seconds, open Odin and then repeat from Step 3 of this guide again.

Also, If device is Stuck at setup connection or on any other process, then too, try this: disconnect your S3 from PC, close Odin, remove phone’s battery and put it back inside in 3-4 seconds, open Odin and then repeat from Step 3 of this guide again.

FEEDBACK US!

It was easy to flash stock Jelly Bean 4.3 firmware on your Samsung Galaxy S3, right? Let us know in comments below.

Your suggestions and queries, if any, are most welcomed!

37 Comment

  1. Rjay Rivera says: Reply

    My GT-I9300 is stuck on this part. what to do? pls help

    Added!!

    Enter CS for MD5..

    Check MD5.. Do not unplug the cable..

    Please wait..

    I9300XXUGMK6_I9300OXAGMK6_I9300XXUGMK6_HOME.tar.md5 is valid.

    Checking MD5 finished Sucessfully..

    Leave CS..

    Odin v.3 engine (ID:3)..

    File analysis..

    SetupConnection..

    Initialzation..

    Get PIT for mapping..

    Firmware update start..

    SingleDownload.

    sboot.bin

  2. thanks for this page, been looking everywhere for a fix to remove brick from phone, only step required after the pass was to hold volume up, home and power all together while phone attempted reboot. and this then allowed a factory wipe and reset device..

  3. Ankit says: Reply

    Thanks a lot for the above page…I had been trying to fix my S3 since it got soft bricked but couldn’t find any solution….Tried the above steps today and it worked just perfect !!!! Kudos to you guys

    1. Kapil says: Reply

      You’re welcome, dude.

  4. Lumos says: Reply

    I’ve been trying for two days to fix my phone. Your solution worked. Thank you soooo much! Hats off!

    1. Jacob says: Reply

      but did it delete your data and photos

  5. Rejeesh says: Reply

    Im getting this message pls healp

    Added!!

    Enter CS for MD5..

    Check MD5.. Do not unplug the cable..

    Please wait..

    I9300XXUGMK6_I9300OXAGMK6_I9300XXUGMK6_HOME.tar.md5 is valid.

    Checking MD5 finished Sucessfully..

    Leave CS..

    Odin v.3 engine (ID:3)..

    File analysis..

    SetupConnection..

    Initialzation..

    Get PIT for mapping..

    Firmware update start..

    SingleDownload.

    sboot.bin

    NAND Write Start!!

    tz.img

    boot.img

    recovery.img

    system.img

    FAIL!

    Complete(Write) operation failed.

    All threads completed. (succeed 0 / failed 1)

    1. Guest says: Reply

      I have the same problem too! Please, can someone help???

  6. potatonah says: Reply

    Oh God! I love you! It worked! I thought she’s dead ;( Really, Thanks!

  7. the proplem is i can’t boot into download mode from the first place

  8. David Refoua says: Reply

    I’ve downloaded many ROMs using odin, the problem is that my S3 can not mount any partitions at all. 🙁

  9. Tronco says: Reply

    thanks you so much!

  10. tmbritti says: Reply

    any troubleshooting suggestions for if you follow these directions exactly and still get a FAIL! ?

  11. Bob says: Reply

    Wow, what a patronising little wanker you are.

  12. mike tylrr says: Reply

    the frameware link is dead

  13. Travis says: Reply

    Thank you for the wonderful guide. Can you Fix the Firmware link please?

  14. Maneesh says: Reply

    Not working for me…. Stuck here…. can anyone help???

    Added!!
    Enter CS for MD5..
    Check MD5.. Do not unplug the cable..
    Please wait..
    I9300XXUGMK6_I9300OXAGMK6_I9300XXUGMK6_HOME.tar.md5 is valid.
    Checking MD5 finished Sucessfully..
    Leave CS..
    Odin v.3 engine (ID:3)..
    File analysis..
    SetupConnection..
    Initialzation..
    Get PIT for mapping..
    Firmware update start..
    SingleDownload.
    sboot.bin
    NAND Write Start!!
    FAIL!

    Complete(Write) operation failed.
    All threads completed. (succeed 0 / failed 1)

  15. Maneesh says: Reply

    Not working for me…. Stuck here…. can anyone help???

    Added!!
    Enter CS for MD5..
    Check MD5.. Do not unplug the cable..
    Please wait..
    I9300XXUGMK6_I9300OXAGMK6_I9300XXUGMK6_HOME.tar.md5 is valid.
    Checking MD5 finished Sucessfully..
    Leave CS..
    Odin v.3 engine (ID:3)..
    File analysis..
    SetupConnection..
    Initialzation..
    Get PIT for mapping..
    Firmware update start..
    SingleDownload.
    sboot.bin
    NAND Write Start!!
    FAIL!

    Complete(Write) operation failed.
    All threads completed. (succeed 0 / failed 1)

  16. sidhin ks says: Reply

    Hi i have tried the same steps but did one more thing
    i selected the same file to select and flash third option, that is CP or phone and now it is stuck on second samsung logo
    any suggestions?
    thanks
    Sid

    1. Shivam says: Reply

      Do the process again in the right way 😉

      1. sidhin ks says: Reply

        but then what about the flashed CP data?
        Will it be restored?
        i tried it and is not working?
        Also do you have links to 4.1.2 firmware
        Mine is GT-I9300XXELLA

  17. Zeuslian says: Reply

    Phone wont stat long enough on download modd it stays on for like 2 secs then reboots. NOTE: there is no problem with power button

  18. Romeo@Juliet says: Reply

    hi, my phone is samsung galaxy s3 GT-I9300. im having a white screen on boot and it just stuck there. can go into download mode tho. but when i try odin to flash it to stock firmware it says “there is no pit partition”. i have downloaded some pit file from online for gt-i9300 but when i try with pit file it says “Re-Partition operation failed” pleaseeeee help 🙁

  19. Jefrey says: Reply

    Well my problem is that when i turned on the device i didn’t get any
    vibrates, sounds or the Samsung intro thing. I just got the Samsung
    Galaxy S3 Gt-I9300 icon. When i had the S3 GT-I9300 icon, i could go to
    the menu (where you can change your device to factory mode,delete
    cache,reboot and all the other things). First i tried to reboot my phone
    (when i did that it said Error! and after that the phone shut down and immediately the phone turned on and i got the s3 icon again)
    then i tried to delete my cache but the same thing happened (shut down
    and then the icon appears)…and then i tried to put my device to
    factory mode, (yes, it deleted all of my data but still after that i got
    the S3 icon.) The very last thing i tried to do was going to download
    mode but when i did that my phone just shut down for good. (Black
    screen,nothing happens??) Now i don’t know what to do?

  20. nikhil says: Reply

    After i got a pass…….. The phone show ” FIRMWARE UPGRADE ENCOUNTER AN ISSUE.PLEASE SELECT RECOVERY MODE IN KIES & TRY AGAIN

  21. John smith says: Reply

    HI guys plzz help me my phone is bricked buttons are working but not powering on or of just showing samsung gti9300 logo for 2 seconds and then black screen again logo for 2 seconds and then black screen just this is happening it is also going in download mode4 but not downloading anything and just comes message of fail plzz help me how to fix it

    1. Kapil says: Reply

      What error are you getting when trying to install a firmware using download mode?
      Copy paste the Odin log here. Or share a screenshot.

  22. craig says: Reply

    I get through ODIN with a pass, then my phone boots and shows the picture of the dead android with the red triangle. why is this?

  23. Roy says: Reply

    Ok, bit of back ground…..Have this GT-I9300 for Trinidad/Tobago that needed the screen replaced. Replaced the screen without incident. Apon bootup it hung at the Samsung GT-I9300 screen. So my search began. Found out how to get phone into Recovery mode. Tried to do Factory Reset and after it went thru the process it came with Android on its back with a red exclamation mark. Then a bunch of text saying it couldn’t do this and that Rebooted and it stayed on the bootup screen, pulled battery and the moment I put it back it booted up once again at the Boot screen. Pulled the battery again but this time I held the power key for about 10 secs. I was able to have the phone stay turned off when I did this. With a little more research I was able to put the phone into Download mode. Using Kies and a couple of other files I thought I was on my way to fixing my phone. It was working as described in a Youtube video. A blue bar appeared and went about 2/3rds across the screen then it stopped. Waited about half hour and nothing happened. Pulled the battery again, when replaced I believe it booted back into the Download mode. Pulled battery again, pressed power button and held for 10 secs. Replaced battery, booted up but to a screen that looked like white and grey jagged lines running horizontally down the screen. And thats what it does everytime I let it bootup normally. I still can get into the Download mode and the screen is normal. Still can’t get back to the Recovery mode. Done everything stated at the beginning of this thread and still no phone. Anyone got any idea why this has happened.

  24. i did above process but in the end it said reset and nothing happened. my phone is still getting stuck on samsung logo.

  25. need help what to do next please. thanks in advance

  26. mexo says: Reply

    I accidentally wiped the system using TWRP, altough i had to download firmware from a google drive (recomend because of speed) it worked beautiful. Thanks

  27. i love you with all my soul

    thank you so much guys you saved my phone

    1. nouuuuuuuuuuuuuuuu
      something is going wrong…my phone is just looping in ”updating apps”
      then after the update it restart and its doing it again and again….any help?

  28. gimj3000 says: Reply

    i cant make a text or call, no service, emergency calls only

  29. gimj3000 says: Reply

    i cant make a text or call, no service, emrgency calls only

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