to perform this RGH and utilize the exploit what you will need to do is read the NAND, install the modchip, write the NAND and installing your dash board of choice (i will be using xexmenu).
To do this you will need:
modchip (i will be using the coolrunner from team-xecuter)
coolrunner LPT program cable
male LPT port (printer cable) (x1)
wires (x12 this will be your LPT cable so make them long)
computer with a female LPT port
a program to read the NAND (i used nandprob 2 you can find it HERE)
Jtag tool (software)
flux (not needed but HIGHLY recommended)
***Disclaimer: I am not liable for any damage that may be caused to your property or self from following the instructions in this tutorial. Soldering irons can be very hot and cause burns, as well as possibly break your Xbox 360. Opening your xbox 360's shell will void its warranty. ***
now then lets get started. first you need to completely take apart you 360 there are plenty of guides to do that so i wont cover it here. When the case is removed it should look like the picture. i highly suggest that you take off the metal case it sits in so that you can access the bottom of the motherboard.
Step 1: Checking what motherboard you have
note: no xenon or corona motherboards are hack-able yet and i've been told that zephyr xbox's have a very low success rate.