The modern standard, which uses a precisely timed electronic pulse to "glitch" the CPU during boot, tricking it into accepting unsigned code. Software Layers
As Microsoft patched the JTAG vulnerability with hardware revisions (specifically the "Trinity" and "Corona" motherboards and the "Slim" console redesign), modders needed a new way in. Enter the . Developed by the hacking group GliGli, RGH didn't rely on a software loophole; it was a hardware timing attack. By installing a chip (like the Xilinx CoolRunner) that sent precisely timed pulses of electricity to the CPU, modders could disrupt the console’s boot sequence just long enough to force it to run unsigned code.
Before diving into custom solutions, it is worth noting the four major official redesigns that defined the 360 era: