I9300XXELK4 – Galaxy S III Android 4.1.2 Jelly Bean LEAKED firmware

We of SamMobile would like to give you the latest I9300XXELK4 Android 4.1.2 Jelly Bean test firmware for the Galaxy S III. Big Thanks to forum member Saturn from XDA-Developers who made this possible by giving us the dump files from his device.

Android 4.1.2 is still under testing phase by Samsung and they will release the official final Android 4.1.2 Jelly Bean update for the Galaxy S III in December. Samsung has added a ton of new feature in their Android 4.1.2 update and we wanted to give Samsung’s hardcore fans a sneak preview of what Samsung is up to in their dev center.

Some of the I9300XXELK4 New Features:

  • Android 4.1.2 – JZO54K
  • Multi-View (Multi Windows Multitasking, same as in Note II)
  • Page Buddy
  • Notification Panel (Notification Panel can now be customized)
  • Smart Rotation (Screen Display adjusts to your angle of sightings)
  • Continues Input in Samsung Keyboard (Like Swipe or Android 4.2 Keyboard)
  • Paper Artist App (Same as in Note II)
  • New Gallery App (Same as in Note II – This is AWESOME)

We want to give you BIG warnings if you want to test this firmware. We have repackaged this firmware into an ODIN Flashable firmware ourselves from the dump files we took from Saturn’s device. This Firmware is already pre-rooted as Saturn had rooted his device before we knew that he had this new TEST Firmware. This firmware will increase your binary counter, if you don’t know what this means then don’t flash this firmware. This Firmware will also change your device status to Modified. This firmware doesn’t contain any Modem so the Modem you are using before flashing this firmware will remain. This is a PRE-RELEASE version so not official from KIES. As this is a PRE-RELEASE firmware so expect some minor bugs.
We have FULLY TESTED this firmware and this firmware works perfectly as any other official firmware.

I9300XXELK4 Firmware Details: 
Android Version: 4.1.2 – JZO54K (Jelly Bean)
Region: Middle East
Carrier: Branded
Changelist: 487742
Build Date: 8th November 2012

Flashing Instructions:
- Unzip the file
- Open Odin 3.04 (already included in the firmware package)
- Restart phone in download mode (Home+power+vol down)
- Connect phone and wait until you get a yellow sign in Odin
- Add I9300XXELK4_I9300OJKELK5_HOME.tar.md5 to PDA
- Make sure re-partition NOT ticked
- Start flash, sit back and wait a few minutes.


Firmware news 137
  1. Very nice!!

  2. WOW nice one sammy

    now sammobile where is the s2 leak :/

  3. wouu..!

  4. Downloading…


  5. omg when note 2 will get 4.1.2? especially this feature- Notification Panel (Notification Panel can now be customized)

  6. for s2

  7. And still nothing for S2 -__-

  8. For S2 please !!!!!!

  9. When at last the bus for Samsung Galaxy I9100 S2 has already got tired of waiting?

  10. S2

    Always S3 Fast Update ,Or NO ??????????????????????


    Nexus Is My Next Phone ,No Samsung
    Care Only Newest Flagship.

  11. @sam10102539 only newest? lol my note2 is newer than s3 but there are no talks about 4.1.2 for note 2 ;D Better would say- most sellable phone high support

  12. I’m wating for I9100XXLSL firmware (Android 4.1.2)!!!!!!!!!!!

  13. For S2 please !!!!!! I9100XXLSL and N7000XXLS9

  14. Samung has forgot the good old GS2 ….

    no JB leaked for this one ?!! We are at half november …

  15. Always S3 !
    Note n7000 ?? When ??


  17. Like I said, bring a flame thrower.

  18. Very nice! I downloading …..

  19. i was really looking forward!!! It’s like christmas! :D

  20. this rom have not spanish??

  21. YES there is spanish and all other languages.
    you can set it to spanish with: “morelocale 2″
    look for in in the play store

  22. does it have any bugs ???
    mine is india factory unlocked …can i install it…??

    ENGLISH / HEBREW / ARABIC is the only languages?!

    Otherwise MoreLocal2?!

  24. S2!!!

  25. Still waiting Chilean 4.1.1 for 9300

  26. Now someone can leak the sgsII JB firmware

  27. why did I paid so many extra dollars for my note 2 they gave much better software on s3 I am thinking of getting my s3 back and sell note 2

  28. Btw, does this erase everything like my apps and settings when flashing it?
    It’s not just an update?

  29. Hi, does anybody already try the leak?, how about battery drain, can i just flash it over my ICS Stock Rom?

  30. Thank you very much.

    Sorry to be impatient, but in year 2012, it kinda sucks when you try (and fail) for hours to download a single file.

    Please, please, please, use other mirrors.

    Hotfile used to be great and I had for 2-3 years a subscription but now, it seriously isn’t worth it.

  31. the features are awesome… :) I especially like the font cool jazz…


  33. Flashed with Mobile Odin and works almost perfectly. Only Smart Rotation is doing nothing. Bummer!

  34. I have this feutures on my Galaxy Note Lol.

  35. I´m testing the rom and has absolutelly no bugs!!! More fluid and the new features are just PERFECT… i cant say too much for the battery because i flash the rom just a couple minutes ago… but its a SOLID ROM and I RECOMEND!!!! ps: Israel Rom… came with a Jewish Calendar app!!! kkkk but dont worry, the regular calendar its right there ;)

  36. still waiting 4.1.1 for GS3..India-:(

  37. Question. Multiview work on landscape mode?? videos in youtube don’t make it clear.

  38. can i install this update if my galaxy s3 is not rooted

  39. yes you can… you dont need root to use odin…

  40. can I switch back to 4.1 1 if I don’t like the leaked 4.1.2

  41. Samsung should consider multiview with all the apps, bcoz to be honest i have never used it, having chrome and whatsapp at the same time is my ideal, without being able to put any app i want to into multiview its just the most useless feature, sad truth

  42. This firmware is only for international GS3 right? Can it be flash to Verizon GS3 US?

  43. đã ai thử trên thiết bị của mình chưa,flash rồi có sóng điện thoại không

  44. has anyone tried on your device, flash and wave phone

  45. why “super user” apps included in samsung’s default application….?

    why “super user” apps included in samsung’s default application….?

  46. how ca i change the language to French ?

  47. I have S2 got a leaked firmware I9100XXLSJ 4.1.2.. can I install that update if my s2 is not rooted? please help!! PLEASE!! people on the S2 thread aren’t helping..

  48. Esta exelente muy buena el unico fallo es que no trae idioma español..

  49. Thank’s Liran for “morelocale 2″ ;) language installed

  50. @powerP913
    yes you can update your phone even if it is not rooted
    what you need is Odin and the firmware

  51. I wished they’d added the option to enable/disable the brightness control from the notification panel.

  52. @freddy1991 thanks a lot. :D I even have GS3. updated it yest itself with 4.1.1 via kies. I’ll wait for official 4.1.2till then I’ll explore 4.1.1 anyway.. I downloaded the ODIN and the firmware… Now i’ll flow the steps as mentioned there.. DO I NEED TO BACK UP MY DATA?

  53. Can I try to update my i747 SIII?

    I tried to enter in download mode, but a screen warning if I want to proceed is shown and there is only one option to go on pressing volume up.

    But if I do this it goes to download automatically something and it get stuck on that screen showing the robot. I had to use stock fw to get it back to normal with Odin.

    Any idea?

  54. can i flash this i’m from philippines is it possible in my country/region?

  55. is it possible to flash it im from philippines..

  56. @powerP913
    doing backup is never wrong

  57. will it delete everything if i flashed it?

  58. It works good, but not perfectly (of course)It is not smooth as 4.1.1. but it could be because I haven’t cleaned data and Darvic. Some features it seems that are not developed fully, but it is just test rom. Full version will be smashing! And, yes, you could instal it over the official previous rom

  59. And…no, if you do not clean data and do factory resser, everithing stayes on the fon as it was…except, on my phone some apps blocing and stops to work. But after reinstal, everything works normaly (as I said….but not so smooth).

  60. thanq…
    its working fime.
    am from India

  61. Video Review of android 4.1.2 and its features like Multi Window, Smart Rotation, Custom Notifcations and more. On youtube :)


  62. Great is fine …… but huge problem rispsta delayed touch screen, solve thanks :-)

  63. Great is fine …… but huge problem delayed response touch screen, solve thanks :-)

  64. Hi >>

    When For I9300 XXLH1 Release ??!!

    Are this Number is true?!!

    Persian !!??

    I Waiting……

    TNX.. <3

  65. Don’t understand one thing, how the hell Galaxy S II will get S-Cloud with 4.1.2 update, and Galaxy S III don’t?

  66. this is a firmware with israelian Brand with a jewish calendar and pre rooted i think is better if we wait for a new rom with out this features also this rom dont have other languages and this is so so bad english is good but is not all specially for people living in other countries

  67. che ha problemi di lingua in questa Rom la soluzione e andare in play store e scaricare il programma language enabler e cliccare Enable hidden languages e riaviare il telefono e troverete tutte le lingua del mondo

  68. that language problems in this Rom solution and go play store and download the program language enabler and click Enable hidden languages ​​and riaviare the phone and find all the languages ​​of the world

  69. download link doesnt work………..

  70. Flashed and working like a charm…….

  71. Excellent Firmware… as stable as an original release from kies.

  72. tanx samsung

  73. I am curious if they already added cell broadcast, to use the dutch disaster alert system NL-Alert. Can someone in the Netherlands confirm this?

  74. Excellent and Excellent and Excellent >>>>>>>

    Always distinguished from Sam So well done ,, waiting for the original software :)

  75. Big thanx for sammobile tem and we will wait for the best .with my bestwishes

  76. I tray this the new update 4.1.2 for galaxy s3 it’s good then 4.1.1 thnx alot

  77. Been using the rom for a day and i must say im impressed. Got all my apps working with multiview (Thanx to xda-devs). Im excited for the final version of this rom! :D just wishing and crossing my fingers that they’ll include “slow-mo” with the cam in the final version.

  78. Hi, I think this rom is amazingly brilliant, fast & smooth, my S3 is running like a dream, no issues or FC’s, so happy I gave this a try, can’t wait for the official release. Oh and My battery Life Is the best I have ever had on any S device, 1d 23h and still have 38% remaining, been using wifi, gps, calls texts internet, facebook everything to put it through it’s paces. Anyway Give it a try.

  79. contacts and phone is just little bit more speedy, but again laggy :(

  80. after installed it, mic is not working during phone calls in my S3.

  81. what???
    why israel???
    what are you thinking sammy???
    i wont change my rom…
    down with israel….i always use UK or US Roms(IF EXSIST)

  82. I installed this everything worked fine but the phone is stuck in a boot loop :( I know I can make it work by installing a different version firmware. But I really want to try it out. Is there anything I am doing wrong?

  83. I went into recovery, wiped cache and data and it booted :)

  84. Perfect!

  85. Jellybean 4.1.2 really great update..multitasking window work fine. Awesome galery…update to it last night. (S3 international..malaysia.)

  86. Okay bug in “Message” app. Laggy when scrolling text messages.
    Every reboot I get “Android is Upgrading…” message.

  87. very nice

  88. is there anyone out there who have tried this update?

  89. @aybanloy
    Isn’t anyone out there not reading the comment before asking question?

  90. Tried for a couple of days.. just having some problem with tethering..

  91. I put this firmware and now when I call, they neither hear nor listen. Does anyone recommend me something?

  92. It is working like a charm!…New Gallery is just too good..Multi window is the best i have ever seen!….i would give 10 out of 10 for this firmware! \m/

  93. Thanks! I’ve installed it and works fine, considering that it’s just a leaked version…
    One thing only: when I turn off the WiFi, it immediately turns back on by itself. I have to turn it off a second time before it actually shuts :/

  94. I’ve been using it for 3 days now. Everything works fine except for GPS. It keeps losing signal all the time. Does anyone have an idea on how to fix this?!!

  95. ALSO having a MIC issue. Mic simply doesn’t work with calls, works elsewhere, but calls do seem an important, indeed central aspect of a phone. really like but re-flashed 4.0 to “restore” calling abilities, i.e. MIC. tried re-flashing 4.1.2 many many times to no avail, no MIC. ANY assist is greatly appreciated. thanks.

  96. reset factory could be good idea considerating all data will be deleted but it could fix this problem make a hard reset data factory from recovery menu vol up + menu butom + power bottom and finally en the menu reset factory but remember all your data will be erase hope it can help :D

  97. i have problem whit the battery i have low really low battery in a few hours charging completly full the battery any any idea ??? how to fix it???

  98. I have problem. When wifi hotspot connect 3 device(3 pc), mobile is dead and reboot. Please correct this problem. Thank You!

  99. been using for a few days now with no problems at all!

  100. So what? This is just a bad joke for all of us who are still waiting for a Jelly bean update through Kies. Samsung hasn’t even been able to deliver 4.1.1 Je to every country, and now they are thinking about 4.1.2?

    Before you start running, you gotta learn how to walk. You don’t go from crawling to running. Sure thing they sell some nice hardware, but the software concern they put on their products is close to zero.

  101. This one is awesome! Downloaded two days back and is working perfectly fine till now! Thanx!

  102. works fines i am using this from couple of days and its perfect….

  103. I have downloaded this rom and i did not encounter any problems mentioned by you guys…(mic, gps, etc..). I came from a UK version flashed directly to this leaked firmware. My battery gets thesame juice considering im turning all my radios on… (gps, wifi, google now).. I managed to squeeze up to 11 hours from full charging with heavy use.

    One particular feature I noticed is that aside from the multi window, buddy page, smart rotate and other tweaks that comes with this rom is the ability to capture an image in videos being played which is great. there is now a camera button on the video playback and you can capture a still photo from the video itself.

    For those who are complaining about batter life, try to calibrate your battery it might help. You can download the app at playstore “Battery Calibration” it might help you solve those problems instead of going to hard reset, :-0

  104. This firmware looked quite stable until i noticed 2 flaws. which i felt were quite important for me.

    1.) The LED blinker doesnt function at times.
    2.) Auto refresh on the exchange emails doesnt work which means emails dont get downloaded until refreshed manually.

    I hope this feedback works.


  105. keep in mind . this is rooted firmware

  106. Good rom but found “Message” app. Laggy when scrolling text messages. so I went back to 4.1.1

  107. will this work on the AT&T Samsung Galaxy S3?

  108. I have the same problem as kaylac. When wifi hotspot connect devices(pc), mobile is dead and reboot. Please correct this problem. Thank You!

  109. Facebook notification not work on galaxy s3 4.1.2 Please Help me sadoece @ gmail.com

    İf you help me so I can give you premium of hotfile/turbobit/uploaded .to..

  110. Very nice rom and really good battery life….can’t wait for final version.

  111. does this also work for the sprint galaxy s 3

  112. Download in progress \o/

  113. After i update my phone to 9300XXELK4_I9300OJKELK5_ILO.zip my microphone not workin.I try factory reset and turn off and on active noise reduction but nothing help me.What to do

  114. Hi there. I have the same issue as denis216. After installing 9300XXELK4_I9300OJKELK5_ILO.zip I basically do not have any voice on phone calls. Cannot hear anything and the other person cannot hear me. Please help. Everything else seems fine. I have checked so far the Volume.db file and that looks normal so not sure what is causing it.
    Please Help.

  115. Just wanted to add that I have tried applications like Viber and Skype and that seems fine.

  116. @sergedavidov just flash the rom again … if this does not fix the issue then back to the other rom i not sure which could be the problem

  117. Worked perfectly for 2 weeks untill 2 days ago suddenly stopped charging while phone was on(Left it plugged in for the night and in the morning battery was at 11%). Tried 2 different chargers and none od m worked, switching back to 4.1.1 solved the problem.

  118. @ricksanz thanks for your reply.
    I have in fact managed to resolve this software issue by backing up all data and settings and flashing back (using Odin) to original 4.0.4 version and wiping all user data, then updating to 4.1.1 official version, and only then updating to this version of jelly bean 4.1.2. Now all works like a charm and looks to be ok. Running it for 4 days now. Will advise later on if I have any issues.

    Just to clarify that the specific issue fixed using this method was the no sound on voice calls issue but Skype and Viber was working fine. It is purely a software problem as I had no problem before installing the new jelly bean version.

  119. I installed the firmware a month ago and it has been working perfectly!

  120. i intalled yesterday night, everything work fine, smooth and well. just like and update all my data and app keep there but i loss 4 homescreens?¿?¿? i maked and received calls ok, notification off everithing ( emails,google,facebook, apps) all well. play music and all the basic things well. i installed “morelocale2″ from google play to change zone language to spanish. And there are an app to reset the flash counter called “triangle away” (aswell from google play)to keep your device like original. but please somebody can tell samsung to put quick music player controls on the lock screen?? everybody listen music on the way i think its basic!! and id like to know it possible to ad more app to the multiwindow? how? and customice the quick settings buttons? i mean to add differents functions/buttons like the torch, or others. i saw all this things in custom ROMs.
    I had a Galaxy S3 GT-i9300, rooted, stock original 4.1.1 JB. updated from 4.0.4 with KIES.

  121. Everything works fine except for GPS. It keeps losing signal all the time. Does anyone have an idea on how to fix this?!! Please help me….

  122. Everything works prety good except for GPS. When I use any GPS app It kloses the signal all the time. Someone knows how to fix it???!! Please help me….

  123. Hello everyone. I have been using this firmware for two week now and it is really terrific. Thank you administrators. I have one problem though. My phone takes almost 12 hours to fully charge and like 5 hours on moderate use for the batter to go back to zero. Can some one help me on this coz its really frustrating as the battery dies in the middle of job..

  124. after 10 days working good i tryed to connect via wifi to an open signal and no problem but locked signal … crash the settings app and i cant connect. as well problems recording video and the GPS signal lose all the time. i know its late and i didnt read nothing else. but i will try to find the official rom with all running well.

  125. another and important thing, im not sure but the micro sd card was extracting suddenly and all the time to finally break down the sd card. im very very angry about this. after i change the sd card and start to do the same. so its the phone not the sd card. now im downloading the latest official firmaware. hope to resolve everything. byeee

  126. In mY S3 SmartRotation Is Not WorkinG The oPtion Of SmartRotation Not Enable In mY S3 Any Salotion I InstAl Darkyrom Of Jellybean XXELL4 >….????

  127. Dear can i try this in my S3???? iam from PAkistan

  128. I was using this rom for a month and it was really nice. but when i tried to factory reset to go back to ics my phone has been stuck in an infinite bootloop. i have tried to hard reset from the recovery mode but that wont do either. someone please help me.

  129. Should i Install on Samsung Galaxy S3 SGH-T999, Pls Help!!!

  130. Pingback: Actualizar Samsung Galaxy S3 a Android 4.1.2 Jelly Bean (I9300XXELK4) - AndroidZone

  131. the link doesnt working ….pls reupload another site
    .I need it!!!!!!!!!!!!!!!!!!thanx

  132. Pingback: El Samsung Galaxy S III recibe la primera ROM con soporte multi ventana

  133. Pingback: HWzone | רום רשמי בגרסת 4.1.2 למכשיר ה-S3

  134. Pingback: Actualizar Samsung Galaxy S3 a Android 4.1.2 Jelly Bean (I9300XXELK4) | EmaCorp News

  135. link doesnt working man please fix it, please help……….

  136. Pingback: Samsung Galaxy S III için Android 4.1.2 Jelly Bean Sızıdırıldı | Andronova

  137. link dont work

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