So I have been trying to get my ofono stack working, as of now it seems like the android stuff can't access its own stuff in the /proc folder. The list of what isn't working as of this writing is: Cellular (Ofono sees the cellular modem but can't access its own folder in /proc) Bluetooth (completely untested) Rotation (sensors are found but no values generated) GPS (test_gps segfaults in halium-boot but not in hybris-boot) Audio (untested) S-Pen (kernel sees it as a input device but disables it for some reason) If anyone reading this has a note 4 and wants to take on any of these tests let me know your findings and I will update the list as issues are resolved. I also welcome any advice anyone may have if they read this and are not in telegram but have an idea of what's going on.