Req:
Rooted android phone (any version)
ROM toolbox lite (at playstore)

Desired bootanimation.zip
Desired shutanimation.zip
(must be both compatible to your device resolution)

Desired bootaudio.mp3
Desired shutaudio.mp3
Focus~

open rootbrowser then swipe left to browse on your sdcard and locate your desired bootanimation.zip, desired shutanimation.zip, desired bootaudio.mp3 and desired shutaudio.mp3, then create a new folder and rename the folder to My boots and move them all in for later use

(I moved mine to a new folders and renamed the folders to my specific boot/shut animations and bootaudio/shutaudio as what you can see on my SS, let's use my SIII boot/shut ani as an example)

or you can have your own desired bootaudio and shut audio, but the time limit must be 3-4seconds only

After selecting your desired bootaudio and shutaudio, rename them as

bootaudio.mp3 (for boot tone)
shutaudio.mp3 (for power off tone)

Example:
your desired bootaudio name is FinalFantasyVII.mp3 (rename it to bootaudio.mp3)

and your desired shutaudio is FacebookTone.mp3 (rename it to shutaudio.mp3)

(just move them in to the folder that you've created, My boots)

create a new folder again as back up for later use for your stock bootanimation.zip, stock shutanimation.zip, stock bootaudio.mp3 and stock shutaudio.mp3
(rename the folder to stock back up)

Now we will change bootaudio and shutaudio first~

Swipe right and locate

system/media

Long press bootaudio.mp3 and copy it to your stock back up folder that you've created earlier (just swipe left to go back to sdcard)

After copying it, swipe right again, Long press shutaudio.mp3 and copy it to your stock back up folder (practice swiping left/right)

After copying both, swipe right and delete bootaudio.mp3 and shutaudio.mp3

Then swipe left and locate My boots folder that you've created earlier from where you put all of your desired bootanimation.zip, shutanimation.zip, bootaudio.mp3 and shutaudio.mp3Long press your desired bootaudio.mp3 and copy it to system/media (just swipe right)

Swipe left again and long press your desired shutaudio.mp3 and copy it to system/media (swipe right)

After doing this both, long press bootaudio.mp3 and change permission to

rw-r–r–

And do the same permission to shutaudio.mp3

After doing this again, long press and copy your shutanimation.zip to your stock back up folder (swipe left)

Then swipe right and delete the shutanimation.zip

Swipe left again and locate your My boots folder and long press your desired shutanimation.zip and copy it to system/media (swipe right)

And change permission again to

rw-r–r–

Next, open rom toolbox lite, swipe left twice and tap Boot Animations, swipe right to Local (you'll see it at the upper left corner)

Locate your stock back up folder that you've created earlier, from where you put your desired bootanimation.zip

Tap your desired bootanimation.zip and tap install and wait for it to finish and voila!

Reboot your phone and you'll see the changes :3

Good luck and congrats for following the tut correctly~

God bless us all :3

PS:
bootanimations and shutanimations have different method of installation~

if you feel any problem then watch

Hi Nintin

Samsung S4 Boot Animation for 480 x 800