I was successful in jailbreaking my ATV 2 (iOs 4.3), but when attempting to do a tethered boot, I follow instructions, connect both power and usb, press and hold menu and play for 7 seconds, but it never enters in to DFU mode. Can anyone help?
Try to refer this method and tell which part doesn't work..? [HOW-TO] - Jailbreak Apple TV 2 (ATV2) Using GreenPois0n RC6