I have made a custom android 6.0 port
I'm still working on it. I just finished my high school and am busy with exams. But I hope to have it on by end of this year or early next year. It has lots of bugs as of now. I can't seem to begin fixing the problem no matter how much I tweak. Main issue still remains with the telemetry and hardware drivers. The camera works without flash. The moment you turn on Flash or leave Flash Auto and snap a pic. The moment the flash goes off, the phone will die immediately. Then Bluetooth doesn't work as of now. So you can only share files via a USB connection or through FTP on common network using a File Explorer with such capabilities. The cellular connection just won't work. I don't have the knowledge to build drivers for it to work. I can't get it to work from extracting the drivers from Sailfish Jolla port. Wifi works but let's be honest it's 2.4 GHz only. It works choppy. At times it'll disconnect automatically for no reason at all. But at least it works. It works well for me. Battery drain is one problem that cannot be fixed. A 1650 mAh battery isn't exactly enough even if you run Android 4.4. So it lasts for 4-5 hrs on standby. It's just for fun. I just wanted to see what it was capable of. And I may decide not to complete this project if the bugs can't be fixed.