http://i31.photobucket.com/albums/c385/Thanh_Do/DSC03313.jpg

1/ Use an Acro knife to gently lift/remove the chip from the cartridge. I think HP only glued the chip to the cartridge so it's easy to remove it.

http://i31.photobucket.com/albums/c385/Thanh_Do/DSC03314.jpg

2/ Solder the chip into the slot inside the printer head. Be careful to solder it the right direction.

http://i31.photobucket.com/albums/c385/Thanh_Do/DSC03290.jpg