[How To] Create A Custom Splash Screen On Android Devices
Although the splash screen is one that only shows up for a few seconds when booting up your phone, that doesn’t mean that it isn’t important for the whole design experience. A good looking splash image really refreshes the phone. There are several custom splash screens available and there are many to choose from. However there might be just one specific image you really want to have as a splash screen. XDA member deficitism has created a guide to make this possible for you. Using various tools, you can quickly create your own splash screen using the graphics you want.
Originally posted by deficitism
This is a quick tutorial on creating your own custom splash1 image along with a flashable hboot package.
**Remember, in order to flash custom splash1 screens via hboot, you must have s-off via unrevoked forever.
***I take no responsibility for any damage you cause by performing any of these steps. They are for educational purposes only.
The guide includes an “android-info.txt” file, which is specifically for the Droid Incredible. In order to flash it to another device, you will have to change information inside that text file. Hit the source link for the guide and downloads in the official thread.
Source: XDA Developers