Hey guys,
I got my sierra MC8775 3G Module working. Its not that hard to do.
-Install the card in the mini pcie slot
-Go to the sierra website and download drivers for the sierra AirCard 880E (compatible to the mc 8775)
-Install those and reboot
-Go to /s/l/e and search for sierra kexts and copy all three kexts to desktop
-uninstall the driver (sierra watcher, all you need is the kexts)
-check the device-id in system profile of the card (recognized as usb mini card)
-covert device ids from hex into decimal numbers (ask google)
-instert decimals into plist files of the sierra kexts in the mc8775 section (plist is found in the content folders in the kext files)
-copy kexts back to /s/l/e and replace existing ones
-repair permissions via kext utility and reboot
Now the device should be recognized correctly in the network section. Now find out the apn for your provider. It took me
some time to find the right configuration but now it works very well.
I tried to fix brightness with the custom x3100 driver which tcone linked to. All it did was wrecking my system. Any other ideas how to fix brightness controls? Also I cant deactivate bluetooth. How do I tackle that?
Thanks!
EDIT:
Heres a link to the edited kexts for sierra mc8775.