Yosemite update and boot problems | I'm stuck

[perezdavid]

Hey Tonymacx86 community!

I'm stuck. I've updated my hackintosh to Yosemite and made the 10.10.1 update. I launched Multibeast and tried to check/uncheck the right codecs... I then tried to reboot the computer and it always end up with the typical black screen after loading half of the loading bar under the apple grey booting screen.
I tried to boot with the USB... I tried writing -x to boot safe mode,... nothing works and I don't know what to do.

Gigabyte Z77x-UPS TH
Intel i7 3.5 ghz

What can I do to fix this? Can somebody help me?
Happy new year to you people

 

[fitzpaypay]

I did some updates on my Hackintosh running Mavericks and now I can't get the computer to boot into the OS X either. It just flashes at the Chameleon screen. Any ideas?