If you have this odd problem with your apple magic track pad try following: find another USB dongle that should work with hackintosh (with other chip than the current installed) and then simply change the bt dongle while the hack is running. Even if it does not work, just wait a moment and switch back to your original. This is just something I found out by coincidence and I have not found any guide how to overcome this otherwise.
Below you have my story with 10.9 and upgrading to 10.9.2 and problem with trackpad.
I built a 10.9 Mavericks and simply took a spare bt from my box. It was a Cambridge Silicon Radio pretty new small bt and it worked like a charm although bt off/on does not work and I do not know about sleep either because I have my hack on all time.
At some point I bought iogear gbu521 and simply put in place instead of the cambridge on. It worked fine and even bt power on/off worked.
Now I updated to 10.9.2 directly, it went smoothly, the only trick was that once the update started and rebooted by itself (as it should too) the hack did not want to start, not even with -f nor -x. I had an usb with 10.9.2/unibeast copy (tried it directly first to ensure my dsdt and ssdt will still work) and the hack booted with it with -x and the 10.9.2 upgrade continued and all went fine.
Everytingh works as earlier including usb3, ssd data with 500/520MB/s, raid-5 9/12G box in e-sata 180/220MB/s, turbo speed on i7, HDMI audio etc. Also the magic trackpad worked as earlier, i.e. perfect.
Now suddenly my trackpad lost all functionality except track and left klick. I deleted the bt profiles several times, made rebuild on the disk, emptied caches (-f) and system report did show no trace of the trackpad profile etc. But any time I installed the trackpad again, I had only the basic functionality.
Now I found my old cambridge silicon bt usb dongle, I simply took away iogear and put the cambrideg one in place while the hack was running all time. First apple keyboard and the trackpad lost connection, then was automatically reinstalled when the cambridge was put in place AND ALL WORKS ON THE TRACK PAD!
Cheers'
