The new dash is tempermental on Xenons with the spoofing of drives. I had a similar problem but I started out with a completely bricked 0078fk drive (which I still have, bad controller no idea where to get just the controller alone and I'm sure the rest of the drive is fine including the laser).
So I took a spare samsung drive and spoofed it to 0078fk and was getting some RROD error of some kind (it was a while ago I can't remember, E64 or whatever).
Then I ordered a 0078fk drive and received the wrong drive that I received when I initially ordered the replacement 0078fk [elapse of some time to make long story short]
I ended up getting the 0078fk drive and putting the original 0078fk key in and the system works perfectly fine now with the current dash and I got it back to the person that it belongs to.