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. Before you begin with guide instructions below, make sure your android device is adequately charged — at least 50% battery of the device. 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-I9305! 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 variants) or any other device of Samsung or any other company. You have been warned! 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 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 LTE on your computer. ► SAMSUNG GALAXY S3 DRIVERS INSTALLATION GUIDE 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. DOWNLOAD LINK | File name: Latest Odin3 v3.09.zip (951 KB) DOWNLOAD LINK | File name: EVR-I9305XXBMF1-20130607143703.zip (811.45 MB) [UPDATED]   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 help: Click 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. 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. It was easy to downgrade your Samsung Galaxy S3 LTE to stock Jelly Bean 4.1.2, right? Let us know in comments below. Your suggestions and queries, if any, are most welcomed!STOCK FIRMWARE INFO
Firmware Version
I9305XXBMF1
Android Version
Android Jelly Bean 4.1.2
Is this Official?
Yes!
Release Date
July 2013
Credits
SamMobile
  WARNING!
  SAMSUNG GALAXY S3 LTE GT-I9305 OFFICIAL JELLY BEAN 4.1.2 FIRMWARE
  STEP 0: CHECK DEVICE MODEL NO.
  STEP 1: BACKUP YOUR DEVICE
  STEP 2: INSTALL LATEST DRIVER
   STEP 3: INSTALLATION INSTRUCTIONS
  DOWNLOADS
  ODIN ZIP FILE
  FIRMWARE ZIP FILE
  STEP-BY-STEP GUIDE
If you don’t get the Added! message, here are some troubleshooting tips:
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How to Downgrade Samsung Galaxy S3 LTE GT-I9305 to Android 4.1.2 Jelly Bean [Back To Stock]
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31 Comments
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hello, I note that it says don’t try it on T-Mobile – just wanted to check if that applies to T mobile in the UK (EE) or not. thanks!!
Pls check your device’s model no. Install this only if it’s GT-i9305.
Hello thanks for replying, yes the device model number is GT-i9305 but as I say its on the EE uk T mobile network. will this be a problem? as you have stated above that do not try it if you are on t mobile!? very confused and don’t want to end up bricking the phone
Yes, you can go ahead. We mentioned T-Mobile only to make sure that people don’t flash the firmware on the T-Mobile variant of Galaxy S3, which is SGH-T999.
It’s completely safe to flash it on your GT-I9305 model.
hello, I note that it says don’t try it on T-Mobile – just wanted to check if that applies to T mobile in the UK (EE) or not. thanks!!
Pls check your device’s model no. Install this only if it’s GT-i9305.
Hello thanks for replying, yes the device model number is GT-i9305 but as I say its on the EE uk T mobile network. will this be a problem? as you have stated above that do not try it if you are on t mobile!? very confused and don’t want to end up bricking the phone
Yes, you can go ahead. We mentioned T-Mobile only to make sure that people don’t flash the firmware on the T-Mobile variant of Galaxy S3, which is SGH-T999.
It’s completely safe to flash it on your GT-I9305 model.
hello, I note that it says don’t try it on T-Mobile – just wanted to check if that applies to T mobile in the UK (EE) or not. thanks!!
Pls check your device’s model no. Install this only if it’s GT-i9305.
Hello thanks for replying, yes the device model number is GT-i9305 but as I say its on the EE uk T mobile network. will this be a problem? as you have stated above that do not try it if you are on t mobile!? very confused and don’t want to end up bricking the phone
Yes, you can go ahead. We mentioned T-Mobile only to make sure that people don’t flash the firmware on the T-Mobile variant of Galaxy S3, which is SGH-T999.
It’s completely safe to flash it on your GT-I9305 model.
Nope doesnt work for me keep on getting a “fail” in odin & “Unsupported version” on my phone & yes it is a UK T mobile GT-!9305 SIII LTE. Have to find this sam efile on numerous sites but 99.99% of them point to the now defuct hotfile :-(.
Tryingthis downgrade as after the cr@py samsung update to 4.3 rendered my phone useless disconnecting from the network every 15 seconds & killing the battery in 4 hours. NOT HAPPY with samsung.
Nope doesnt work for me keep on getting a “fail” in odin & “Unsupported version” on my phone & yes it is a UK T mobile GT-!9305 SIII LTE. Have to find this sam efile on numerous sites but 99.99% of them point to the now defuct hotfile :-(.
Tryingthis downgrade as after the cr@py samsung update to 4.3 rendered my phone useless disconnecting from the network every 15 seconds & killing the battery in 4 hours. NOT HAPPY with samsung.
Nope doesnt work for me keep on getting a “fail” in odin & “Unsupported version” on my phone & yes it is a UK T mobile GT-!9305 SIII LTE. Have to find this sam efile on numerous sites but 99.99% of them point to the now defuct hotfile :-(.
Tryingthis downgrade as after the cr@py samsung update to 4.3 rendered my phone useless disconnecting from the network every 15 seconds & killing the battery in 4 hours. NOT HAPPY with samsung.
Always ” FAIL “
Always ” FAIL “
Always ” FAIL “
Szia nem Ãrtad,hogy samsung s3 LTE 4.3-ról 4.1.2 vÃsszaállitás vagy én nem értem.
Megmarad az imei számok, nem törlődik semmijen kód a telefonból
Szia nem Ãrtad,hogy samsung s3 LTE 4.3-ról 4.1.2 vÃsszaállitás vagy én nem értem.
Megmarad az imei számok, nem törlődik semmijen kód a telefonból
Szia nem Ãrtad,hogy samsung s3 LTE 4.3-ról 4.1.2 vÃsszaállitás vagy én nem értem.
Megmarad az imei számok, nem törlődik semmijen kód a telefonból
Hi,
I’m trying to downgrade my S3 I9305 for unlock reasons but i’m having trouble with the download link to the firmware you provided, please could you provide another mirror?
Thanks
Here you go: http://rapidgator.net/file/1c83529a7337f8b12e1c42ffe609d070 ..I’ve also updated the download link in post with this. Thanks for notifying 🙂
Hi,
I’m trying to downgrade my S3 I9305 for unlock reasons but i’m having trouble with the download link to the firmware you provided, please could you provide another mirror?
Thanks
Here you go: http://rapidgator.net/file/1c83529a7337f8b12e1c42ffe609d070 ..I’ve also updated the download link in post with this. Thanks for notifying 🙂
Hi,
I’m trying to downgrade my S3 I9305 for unlock reasons but i’m having trouble with the download link to the firmware you provided, please could you provide another mirror?
Thanks
Here you go: http://rapidgator.net/file/1c83529a7337f8b12e1c42ffe609d070 ..I’ve also updated the download link in post with this. Thanks for notifying 🙂
Hi guys! I tried to downgrade to the s3 samsung i9305 , extracting file md5 4.4.4 and wiped HBOOT and tz tar folder then I did … I tried to write with odin …. but half- way to the flash off ! 4.1.2 I wrote as fast but it stopped … I am writing 4.1.1 then on it …. and now after so many days of service gsm stuck with ” IMEI null / null , no baseband . ..: ( ( ( what to do about it? you have any ideas please ??? something
Hi guys! I tried to downgrade to the s3 samsung i9305 , extracting file md5 4.4.4 and wiped HBOOT and tz tar folder then I did … I tried to write with odin …. but half- way to the flash off ! 4.1.2 I wrote as fast but it stopped … I am writing 4.1.1 then on it …. and now after so many days of service gsm stuck with ” IMEI null / null , no baseband . ..: ( ( ( what to do about it? you have any ideas please ??? something
Hi guys! I tried to downgrade to the s3 samsung i9305 , extracting file md5 4.4.4 and wiped HBOOT and tz tar folder then I did … I tried to write with odin …. but half- way to the flash off ! 4.1.2 I wrote as fast but it stopped … I am writing 4.1.1 then on it …. and now after so many days of service gsm stuck with ” IMEI null / null , no baseband . ..: ( ( ( what to do about it? you have any ideas please ??? something
What is this bullshit, nobody can download any file if no pay.