This utility boots from micro SD and exposes the internal eMMC flash storage when the PinePhone is connected to a computer.
The process of flashing and OS to the exposed and mounted eMMC is identical to that of any other storage medium - e.g. a SD card. You can use the 'DD' command or a utility such as Etcher or Gnome Disks, etc.
Latest Jumpdrive can be found [https://github.com/dreemurrs-embedded/Jumpdrive/releases/ here].
'''Detailed Usage Instructions'''