Earlier today I pushed a fairy large patchset containing various functional improvements of many boards. If you have Allwinner board and some spare time:
1. Build DEV image/kernel with https://github.com/armbian/build (you need to add EXPERT="yes" to the config to unlock)
2. Install DEV kernel from beta repository
Optional Defreeze kernel updates
Switch to nightly kernel (armbian-config -> system -> Nightly)
Reboot
Switch to other kernel