Hi,
I have a Go910 which I installed NC 9.205 on in Feb 11. I was somewhat naive at this point wrt all things TT, and I installed BL 5.5259 which came bundled up in the 9.205 archive.
The upgrade was somewhat successful, but the device has always had a boot problem - sometime it would be fine, other times it just did nothing, and you had to do a reset to coax it back ...