I have spent hours on this, and BT still will not connect with the Trackpad. It sees it, but no luck pairing.
I have an Asus Z87I-Deluxe with the BCM4352. I have installed the BTFirmwareUploader.kext and see in the log that it successfully has updated the firmware. I tried it with the BTFirmwareUploader.kext only, and then also with toledo's bcm4352.kext as well. Neither works.
When attempting to pair I see errors in the log:
4/3/14 5:30:43.000 PM kernel[0]: REQUIRE failure: inDataSize >= bytesToSend - file: /SourceCache/IOBluetoothFamily_kexts/IOBluetoothFamily-4230.4.10/Core/Family/HCI/IOBluetoothFamily.cpp:12923
4/3/14 5:30:43.000 PM kernel[0]: REQUIRE failure: destinationDevice != NULL - file: /SourceCache/IOBluetoothFamily_kexts/IOBluetoothFamily-4230.4.10/Core/Family/HCI/IOBluetoothFamily.cpp:12891
4/3/14 5:31:43.755 PM System Preferences[294]: Pairing device failed with:-536870208
IOReg at https://dl.dropboxusercontent.com/u/1364641/HarpSeal_IOReg.ioreg
log: https://dl.dropboxusercontent.com/u/1364641/HarpSeal_system.log
Would appreciate any help!