I *just* installed the newly-arrived Crystal Chip 2.0 into my PS2, which is a v9. At first power-on, it booted into the Sony splash screen. Wouldn't launch Xenogears 2, of course, which had been left in the drive. I booted the v29 flash disc, and the menu came up fine.
Chose "Update Firmware", and it had no complaints. Then I restarted the system, and from that point on, I get nothing... just a black screen. The LED on the chip turns green for just a quarter second, then goes off. The disc spins, but there's no sign of life.
What have I done wrong, and can I recover from it?