
These range from the original Coolrunner-II made by Digilent, the Matrix by Infinity Mod, Team-Xecuter Coolrunner, X360Glitch Chip by SoulHaven, and the Stinger by Maximus.

So we can put a bootloader that would fail hash check in NAND, glitch the previous one and that bootloader will run, allowing almost any code to run." This hack requires a "glitch chip", which will send the signal. memcmp is often used to check the next bootloader SHA hash against a stored one, allowing it to run if they are the same.

Explained by free60: "We found that by sending a tiny reset pulse to the processor while it is slowed down does not reset it but instead changes the way the code runs, it seems it's very efficient at making bootloaders memcmp functions always return "no differences". The Reset Glitch Hack is a new type of method which allows the running of unsigned code. Credits go to robinsod, tmbinc, SeventhSon, Martin_sw, and Tiros. Due to the need for a console which has not been updated, they are naturally scarce and once demanded a high price. It is also true that there are several patched CBs, which prevent the exploit. The SMC exploit is limited to consoles running kernels prior to the summer 09 update (7371). The SMC exploit is a faster version of the KK exploit (as in, it boots faster), and allows for the running of unsigned code. This kernel was made famous by the KK exploit (King Kong), where a bug in the hypervisor was utilized to run unsigned code. This exploit causes a re-boot into the 4532 kernel. What the online gaming community has come to know as a "JTAG" is an Xbox that utilizes the SMC exploit. If you would like a high detail explanation of each, go to and read through the explanations. If anything, the RGH is better than a JTAG because there is no re-boot necessary to run the unsigned code. Well after reading a post where someone said that the RGH on a console was "cheaper" than a JTAG, I got frustrated because they don't understand that they are essentially the same.

Basically, most people know that if you turn the on, go to game demos, you can start XeX menu. In general, the understanding of unsigned code is extremely skewed, and is not truly understood. Ok I'm posting this as more and more ppl are intrested in this to mod their games.
