@cannonfodder Try sudo reboot -f recovery

@Rinkeby Volla have a FAQ section on their web site with information about setting up/running dual boot. You cannot update via OTA or change channels. You update within dual boot when an updated image is released. Cheers

@davidoclubb Yes, I followed the instructions from here https://pine64.org/documentation/PineTab2/
Hope this helps, Cheers

@writersglen Instructions here https://forums.ubports.com/topic/7567/how-to-install-ubuntu-touch-on-the-jingpad-a1-c1/31 You need windows to unlock bootloader, installer on linux is fine. Cheers