I booted with the externa HD with armbian, and the after booting went to terminal, a armbian-install, the first thing it asks is format the eMMC, and witch format i believe ext4, and formated and install all with out any error, after that, it ask to shutdown or reboot, i selected shutdown and can't turn back on since, no even in recovery mode to flash the original firmware again (holding the reset button and connect to usb to computer). the light on otical turns on, but that's it.