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I took a 1.6 board I have laying around and decided to do a speed-mod. I paid no attention to quality of solder joints, length of wires, or anything else that a more experienced technician might look at. I did it as quickly and as shoddy as I could, so I could show results similar to what the average Joe may expect. I'm not trying to talk it down. THIS WORKS, and that is what matters and that's what this guide is for.
1. Insert the pinheader. Hold it with one finger against the board and flip it over. Solder 1 pin on the bottom side in place. Make sure your finger is not touching this pin on the other side. Let it cool, and then look to solder the opposite corner (diagonally). Don't let your finger touch that pin this time, and solder it in place. Now you can stop pressing on the opposite side with your finger, and just solder all of the rest of the pins in place. (A MUCH better way than using your finger, is to add a drop of super glue between the plastic holding the pins, and the board. Don't let it touch the metal or it will cook away in a very eye-irritating vapor.)
2. Now we're going to attach the wires to rebuild the lpc. On the top is the guide you should use. On the bottom is the demo job I did, and yours should look similar or better. You'll notice on the bottom picture, the LFrame/D0 wire is soldered to a pad you don't see anywhere else. The guide tells you to solder it to the chip, and the chip has a pad for it. That's not necessary. Just solder it to the pad I show you. That pad is ground, and grounding LFrame/D0 causes the Xbox to boot from LPC instead of the onboard rom. Doing this allows you to take the chip off at will for hotswapping/flashing other chips. (The dark colorations in the bottom pic are not burns. I use rosin-core solder. I usually clean it off to look nicer, but in this case I was trying to demonstrate a real-world normal job someone might do.)
3. Now it's time to get the Aladdin ready to go in. It has features built in for xbox live, which no longer exists for the original Xbox... so we need to defeat those features. Solder the BT pad on the Aladdin to the pad shown. This will enable the chip as soon as power is pressed.
4. Now you're ready to fit your chip and test it out. It mounts on the pinheader like this: