[Galaxy S III General] WannabeDeveloper:
I'M IN NO WAY RESPONSIBLE OF ANYTHING THAT MIGHT HAPPEN TO YOUR DEVICE, YOU, YOUR GRANDMA, NORTH KOREA OR ANYTHING​

This should work on other Samsung devices with QMG bootanimations (like s4)!

I've been searching for solutions and haven't found them.

Bootanimation.zip files just don't work, not in data/local or system/media. BUT I've found the solution.

This guide shows you how to make your own bootsamsung.qmg and bootsamsungloop.qmg or shutdown.qmg! ​

Preparations

=

- Download and install Samsung theme designer http://developer.samsung.com/themes/tools-sdks/Samsung-Theme-Designer-2-0-4

- Have "unzipper" installed (7zip, Powerarchiver, Winzip, Winrar, Peazip...)

- You'll have to have full animation frame by frame in 720x1280 resolution (in other resolutions it will look bad) named like this: first "Image_000.png", second "Image_001.png", third "Image_003.png" and like that till the last frame

When you have done all the above, LET'S BEGIN

1st. Open Samsung theme designer (the one that you previously installed). Under "Create new theme", select "Feature(NonTouch) Phone". Then under "Select Model" select one of them (I've tested only "QinQin", others should work). Under "Select Showcase" select "default". Name this project to whatever you want an press "OK".

2nd. You're sure you did it correctly? Good. Next there's "Idle Component" on the left. Select it and under it should be "Idle Background". Select it. There should now be "Background Type" on the right. Change it from "fixed" to "animated". Now there should be "Frame" under it. Change the number next to it to the number of the frames you have in your animation (the number of the "Image_something.png" pictures). "Duration" is the delay in seconds between the frames. Depending on animation, probably best would be to either to choose 0 seconds or 1. Your choice, if the final animation goes too fast, take a bigger number. I used 1 for the animation I made (it's at the end of this post). If "Repeat" is true, it will make the animation loop. If you just want to play 1 cycle of your animation, choose false.

3rd. Wow, you're already here! Now comes the easy part. There should now be "Animation Object Windows" open in the bottom of the theme designer. Drag your photos 1 by 1 to the empty squares/slots ("Image_000.png" to first slot, "Image_001.png" to second and so on). DON'T WORRY ABOUT THE PREVIEW WINDOWS/ANYTHING, it will look weird but it will look great in your phone.

4th. Now the work is done. Just select "Export Theme" on the top center of the theme designer. Accept Samsung T&C and choose the location of the file so that you'll find it later! Export.

5th. Now you'll have to rename the .stm file to .zip. Open the zip and extract the "IdleBgAnimObj.qmg". Now if you want to make it into a boot animation, make a copy of it and name the copies "bootsamsung.qmg" and "bootsamsungloop.qmg". Backup your old files in system/media with the same name if you want them back someday/if something went wrong. Move the files you made to system/media. Now reboot and it should look beautiful!

If you want to make it into a shutdown animation, name the "IdleBgAnimObj.qmg" to "shutdown.qmg" and move it to system/media/video/shutdown (BACKUP the old one).

IF THE ORIGINAL FILES IN SYSTEM/MEDIA WERE NAMED "bootanimation.qmg" AND "bootanimationloop.qmg", NAME YOUR FILES THE SAME WAY.

YOUTUBE VIDEO:

http://www.youtube.com/watch?v=7W6GN4II7QQ

I hope you made it and you can always hit the thanks button if I helped!

Here's one I made. This looks awesome, gif is from here http://xdaforums.com/showthread.php?t=1471024