Original key/new spare key programming issues

So I ordered a new key that needed to be programmed. I took the new key to the local bmw dealer and the service guy just got in, turned the car on and off, pressed the buttons in a specific order and turned the car back on. The key was then programmed, he checked it and all the buttons responded so i drove off with the new spare in the ignition.

I got home, and the original key no longer works.

What happened? why can't both of them be programmed at the same time?
Can i fix this myself? It really didnt seem complicated, I just dont know the order by which he pressed the buttons. I really don't want to go back to the dealer. Oh and this is a 2006 x3.

help?!

thanks!

Same thing happend to me. Had to do initialization procedure again by myself. It should be somewhere in the sticky threads.

thanks! i didn't find anything in the x3 thread but i ended up finding something about it in the X5 thread which led me to this link:

http://www.programyourkeys.com/BMW_X...ogramming.html

the third one worked for me. hopefully this can help others, too.

same thing happened here.
For those needing the Initialization instructions, here is the stick: http://www.bimmerfest.com/forums/sho...d.php?t=457330

I'll try it out this weekend to see if it resolves my issue.