I have 2 boards for a long time, an Orange Pi One and Orange Pi PC... Have used armbian older versions for a long time, after almost an all year without using then i have downloaded and installed on both memory cards the new version 4.14 (last version on June 16). My Orange Pi PC is fine, works nice and smoth... But the Orange Pi One dont give me any light (red or green) on the board!!! I tryed to use the OS for PC on the One and its give me green light but dont give video signal...
To test the board itself, downloaded and tested a few other OS, from Orange Pi site... And all other OSs from there worked just fine on my One... Turned on leds and give me video signal just fine... But with the armbian version, nothing... dead as a rock!