Xbox 360 Jailbreak Software Download [upd] -

Before RGH, there was JTAG. This exploit only works on Xbox 360s with a system dashboard version below (manufactured in mid-2009 or earlier). If you have a "Xenon" or "Zephyr" motherboard, you might be eligible.

Let’s clear up the fantasy. You cannot simply download a file named jailbreak.exe . Here is the real workflow for an RGH (the most common "full jailbreak"). Xbox 360 Jailbreak Software Download