First you need to make sure you have an S-OFF/Eng HBOOT. This enables you to flash anything to your device, including custom Splash Screens.

This guide assumes you have some basic knowlege about how Android works and how to flash ROMs.

For CDMA HTC devices, see unrEVOked forever.

For the HTC Desire HD, see this thread.

For the HTC Desire Z/G2, make sure you have S-OFFed with gfree/visionary

For the HTC Desire, see AlphaRev.

For the HTC Hero, flash this zip.

For the HTC G1/Dream, flash this zip.

For the HTC Magic/MyTouch, flash this zip.

Droid Incredible

Download one of the splash screens from here, rename it to PB31IMG if it isn’t already, place it on the root of your SD Card (not in any folders), reboot into HBOOT (POWER + VOL DOWN) and press VOL UP to confirm install.

Evo 4G

Download one of the ‘Custom Splash Screens’ from this thread, rename it to PC36IMG if it isn’t already, place it on the root of your SD card (not in any folders), reboot into HBOOT (POWER + VOL DOWN) and press VOL UP to confirm the install.

Desire Z/G2

Look through this thread and download one of the PC05IMG.zip files, then place it on the root of your SD card (not in any folders), reboot into HBOOT (POWER + VOL DOWN) and press VOL UP to confirm the install.

Desire HD

Download this to get adb/fastboot and extract it to C:\adb. Download a splash screen from this thread. Also make sure that HTC Sync is installed for drivers.

1. On your phone, make sure USB debugging is on. (Settings > Applications > Development)

2. Open up a command prompt from Start > Run > cmd > run (Windows XP) or Start > Search for ‘cmd’ > hit enter

3. In the command prompt, type the following: (hitting enter after each line)

cd \

cd \adb

adb-windows reboot bootloader

fastboot-windows flash splash1 splash.rgb565  (or .nb)

fastboot-windows reboot

Enjoy your new Splash Screen!

Original Desire

Grab a splash screen from here and use this utility to flash it.

HTC Hero, Magic/MyTouch & G1/Dream

Download this to get adb/fastboot and extract it to C:\adb. Also make sure that HTC Sync is installed for drivers.

Step 1 – Creating an Image to Flash

1. Using Paint or any other highly advanced Image Editing Software, create an image to be your new splash screen.

2. Download the Splash Creator, unzip it and run ‘CreateG1Splash.exe’ (Don’t worry it’s for hero too)

3. Select the image and click ‘convert‘

4. In the same folder that the program is in, it should have made a file with .nb or .rgb565.

5. Rename this to splash (but keep the .nb or .rgb565!) and copy it to C:\adb

Step 2 – Flashing The Splash Screen

4. On your phone, make sure USB debugging is on. (Settings > Applications > Development)

5. Open up a command prompt from Start > Run > cmd > run (Windows XP) or Start > Search for ‘cmd > hit enter

6. In the command prompt, type the following: (hitting enter after each line)

cd \

cd \adb

adb-windows reboot bootloader

fastboot-windows flash splash1 splash.rgb565  (or .nb)

fastboot-windows reboot

Enjoy your new Splash Screen!

Thank you to 42turkeys for the guide!