I have the Final Enigmah version and I wish to flash my Xbox bios with the EvoX bios. I have already put EvoX on the HD. Is this all I need to do to Flash the EvoX bios?:

1- Join the two points shown on this diagram, and on this diagram.

2- Boot up the Xbox into the EvoX dashboard

3- Disable the Enigmah by disconnecting wires 15 and 21

4- Select 'Flash Bios' on EvoX to flash the bios

Is this all I need to do or am I missing something?

What is the most likely thing which could go wrong and could it render my Xbox useless?

Thanks

PS- I am aware of the guide at xbox-scene but it is very complicated

Read this:
http://www.xbox-scene.com/articles/tsop.php