I had well-read the tutorial for the ZEN X-Fi3, but I have a few questions... Im a bit lost =S
1- ¿Can the Rockbox Utility be used to install the Rockbox custom firmware?
2- I have the factory OF version, 1.00.15e, and the OF version used in the tutorial is the 1.00.22e. ¿Is there any problem, or should I update first through the official updater?
3- ¿What about the bluetooth in the Rockbox firmware?
4- If something goes wrong, I know that there's a recovery mode, but I don't know how it works >.<
I appreciate that tutorial, but I don't understand it very well...

Thanx you anyway for that work

Pd.: Sorry if you notice something bad explained. Im spanish

Namaste.