how do I up it into dfu mode?

How to put iPod touch / iPhone into DFU mode « Karthik's scribblings

I followed the instructions below but I dont get anything that says "DFU" mode. itunes says recovery mode but neither the touch nor itunes says "DFU"

A small guide on how to put your iPod touch / iPhone into DFU mode. Works with all G’s of iPod touch / iPhone What is DFU: Device Firmware Upgrade

Step 1: Turn off your iPod touch / iPhone completely and connect to PC / mac

Step 2: Hold down the Power button for 3 seconds

Step 3: Without releasing the power button, also hold the Home button for 10 seconds

Step 4: Without releasing the home button, release the power button and keep holding the Home button for 20 seconds. Itunes will identify that you are in DFU mode.

• Hold the sleep button on the corner of your ipod for 3 seconds
• hold the home button for 10 seconds
• release the sleep button but keep holding the home button for 15 more second