Installing the Xchip VIA pinheader (solder install)Works on consoles version 1.0-1.4Package Contents:
1. Blue USB link cable.
2. Xchip Modchip
3. USB adapter with override button.
4. (Not pictured) 2x6 Pinheader with pin 2 on row two removed.
Step one:Take apart your Xbox.
An in-depth tutorial can be found
here.
Step two:Identify the D0 point. Solder a D0 wire.
D0 point on consoles versions 1.0-1.1

D0 Point for versions 1.2-1.4

There is also another alternative and easier to solder to point on the underside of the motherboard, it is the same for all versions of the console:

Once you have identified the D0 point you want to use, solder a piece of 30gauge AWG Kynar insulated wire to the point. If using the underside D0, run the wire to the top via one of the four empty LPC bus holes. Filled in white and shown in the above picture. If you soldered to the top D0, use some hot glue to secure your connection, use following pictures as reference. If you soldered the bottom D0, then use some electrical tape and cover up the soldering.
Step 3Solder the pinheader.
Take your pinheader and make sure that pin 2 in row 1 is removed. If your not sure what pin to remove, use the following pictures for reference. Then insert it into the LPC bus.
NOTE: On version 1.0 consoles, the holes on the LPC bus are filled with solder and the solder needs to be removed with disordering braid.
Here is what the bottom soldering of the pinheader should look like:
Step 4Final Installation steps.
Insert the Xchip onto the pinheader as shown:

Then solder the other end of the D0 wire to the D0 VIA on the top of the Xchip PCB as shown:

Hook up your USB flashing device and your done!

Now mount your USB flashing device somewhere neat
Congratulations, you have just successfully installed your Xchip via soldering. This guide was not written by EZB2k, and is not affiliated with them, it was written by Xbox-Scene Forum member twisted.penguin because of EZB2ks neglect to do so.