If you do not already know, changing to boot sound is very simple. Locate the poweron(dot)wav file and rename it to poweron(dot)wav(dot)bak. Create your own (dot)wav file and just rename it as poweron(dot)wav and transfer file directly into the same folder as the older poweron(dot)wav [now renamed to poweron(dot)wav(dot)bak]
For the boot animations. I did a couple of tests and figured out how to make it work with the (dot)zip files that other android phones use. I did end up causing a terrible boot loop and odin was not able to get my phone back to working conditions. I am going to do further testing but I want someone to help me with odin so that if I find myself back again in that terrible boot loop I can somehow recover my phone.
(dot) = .
I used root explorer to locate the files needed
/system/bin
samsungloop
bootanimiation
/system/media
bootani.qmg
samsungani.qmg
If you remove the samsungloop and rename the bootanimation to samsungloop it will cause a black screen to appear where normally the samsung still picture (right before you get to unlock your phone screen) will stay black. Now you need to take one of those "bootanimation.zip" files and add it into the /system/media folder and after the metro pcs video you will get the video within the .zip file. I bricked my phone when I decided to remove both .qmg files. I successfully was able to rename samsungani.qmg.bak and still have a good boot.
For the boot animations. I did a couple of tests and figured out how to make it work with the (dot)zip files that other android phones use. I did end up causing a terrible boot loop and odin was not able to get my phone back to working conditions. I am going to do further testing but I want someone to help me with odin so that if I find myself back again in that terrible boot loop I can somehow recover my phone.
(dot) = .
I used root explorer to locate the files needed
/system/bin
samsungloop
bootanimiation
/system/media
bootani.qmg
samsungani.qmg
If you remove the samsungloop and rename the bootanimation to samsungloop it will cause a black screen to appear where normally the samsung still picture (right before you get to unlock your phone screen) will stay black. Now you need to take one of those "bootanimation.zip" files and add it into the /system/media folder and after the metro pcs video you will get the video within the .zip file. I bricked my phone when I decided to remove both .qmg files. I successfully was able to rename samsungani.qmg.bak and still have a good boot.