How to enter DFU mode

This is a tutorial on how to enter DFU-Mode on your iDevice.

Works with:
iPod Touch 1G, 2G, 3G, 4G
iPhone 2G, 3G, 3GS, 4
iPad

Step 1:
Turn your Device off by holding the lock-button and sliding over.

Step 2:
Hold the lock-button and the home button for 10 seconds. Then release the lock button and hold only the home button for 10 more seconds. Done! You are in DFU mode.