[Samsung Galaxy Mega] KDKobes:
Added link to download adb package

STEP 1

If you don't have it you need to download Odin software to run on your computer. LINK TO DOWNLOAD ODIN HERE

STEP 2

Next you need to download the mr2.tar.md5 file. LINK TO DOWNLOAD STOCK MR2 FILE HERE

STEP 3

Once your done downloading the above files unzip the odin3.09.zip, open the folder and run Odin3 v3.09.3.exe file, and when prompted to run program select yes.

FROM HERE THERE ARE TWO OPTIONS

A - YOU JUST INSALL THE MR2 ROM WHICH IS WHAT YOU HAD BEFORE

OR

B - YOU INSTALL THE KITKAT UPDATE AS WELL WHICH YOU WILL NEED ADB FOR IF YOU DON'T HAVE ALREADY - DOWNLOAD ADB ONLY WINDOWS

DOWNLOAD KITKAT OTA CFG FILE HERE

OPTION "A" INSTALL JUST MR2 ROM INSTRUCTIONS

Odin should be opened up on your computer now you need to boot your device in ODIN MODE. Hold down the VOLUME DOWN, MENU BUTTON, & POWER BUTTON. Once the device starts release the buttons as you should be at a screen that says Warning!! and explains about custom OS. Push VOLUME UP to continue into ODIN MODE. Here it should say Downloading... Do not turn off target !!. Plug your device into your computer with factory cable and most likely your computer will have to download drivers to continue so allow it to do that and when its done your device should be recognized in odin under ID:COM. Go to the AP box and locate the mr2.tar.md5 file you downloaded. Odin will run for a moment checking things and the box will be shaded until it finishes. Once it is done click start and let odin install the software. Once odin is done your device will restart and you can uplug it. YOUR DONE!

OPTION "B" UPDATE TO KITKAT INSTRUCTIONS

(THIS IS BASED ON ASSUMPTION YOU HAVE ADB INSTALLED)

STEP 1

Odin should be opened up on your computer now you need to boot your device in ODIN MODE. Hold down the VOLUME DOWN, MENU BUTTON, & POWER BUTTON. Once the device starts release the buttons as you should be at a screen that says Warning!! and explains about custom OS. Push VOLUME UP to continue into ODIN MODE. Here it should say Downloading... Do not turn off target !!. Plug your device into your computer with factory cable and most likely your computer will have to download drivers to continue so allow it to do that and when its done your device should be recognized in odin under ID:COM. UN-CHECK the Auto-Reboot box then go to the AP box and locate the mr2.tar.md5 file you downloaded. Odin will run for a moment checking things and the box will be shaded until it finishes. Once it is done click start and let odin install the software. Once odin is done your device will just sit there like it is still loading but that is only because I had you un-check the auto-reboot.

STEP 2

UNPLUG your device and HOLD VOLUME UP, MENU BUTTON, & POWER BUTTON. It may take a few seconds but once it restarts you will be booting into recovery (the device should say RECOVERY BOOTING...... in upper left corner) technically, but what should happen is your phone will go to a screen that says Installing Update or something similar then say Erasing and will reboot again (If not just continue to STEP 3). If it does show this screen RIGHT as it reboots push and hold VOLUME UP, MENU BUTTON which will get the phone to reboot into recovery screen. If you miss it just wait for device to turn on then boot in recovery with above method.

STEP 3

Now you should be in RECOVERY. Here the POWER button SELECTS and the two VOLUME buttons move UP & DOWN. Plug your device into your computer then Push VOLUME DOWN once then push POWER button to select "apply update from ADB" on your phone (drivers might need to install, wait for this and then continue). The phone screen should go to another about loading up sideload and how. Now if you have adb installed you need to open a command prompt window from "platform-tools" folder.

From here I will give examples (adjust according where your file is stored)

As example say I saved my file in my documents folder this would be the command to sideload the update

adb sideload c:/users/owner/my documents/ATT OTA 4.4 UPDATE.cfg - - File can be renamed.(I recently changed the name from 2400258.cfg to avoid confusion)

If you have any questions lots of people are available to help here thats why XDA is the best place to go for help. Just keep in mind we are not available at all time so just be patient for a reply. ;)

I was halfway through this post when I seen yours, but I posted it anyway for anyone who might have same issue. GOOD LUCK!

---------- Post added at 12:30 PM ---------- Previous post was at 12:29 PM ----------

Nope