Ok here's the deal:
When you have installed the chip it will only have Xenium OS on it, but that will give you the FTP support you need for the moment.
Now give the xbox an IP through the Xenium OS menu, go to your PC and start a FTP session to the xbox. Make sure that you have an 1.6-1.6b compatible bios. I would recommend EvolutionX M8Plus 1.6 as it will support both 1.6 and 1.6b. Now FTP the bios .bin file to your xbox e:. Reboot the xbox. Go to the first option in the Xenium Ice menu and select "Add Item" and then add it to flash, select your bios file that will be on e:. Name it like EvoX or something. Now you will have a bios that can run unsigned code. For example SlaYers autoinstaller 2.6.
To make life a little easier go to settings in the Xenium Ice menu and make sure that Instant Boot is set to on. This will make sure that the current bios (EvoXM8Plus 1.6) will boot every time you press the power on button. Pressing the eject button to boot will get you to the Xenium Ice menu anyways so.
Note: you will NOT be able to update the Xenium Ice OS due to incompatibility with the Samsung memory timings (the built in RAM on xbox 1.6). So the current 2.01 will have to do. That will not be a problem anyway. There are some bugfixes, but nothing that will limit you in anyway when using it for backuped games and similar.
Note 2: if the xbox still won't recognize the disc with SlaYers make sure to burn it to a DVD-r and also add a dummy file to increase the size of the DVD. Thus making it easier to read for the xbox.
Hope that helps...
