I got success with a more powerful power supply. I used a Qualcomm certified QC 2.0 charger by Aukey. At 5 volts it can put out 3 amps. I reimaged the same sd card, used that power supply and Armbian fully upgraded. I think these Orange PI PC's are super touchy about voltages. My Raspberry PI can get low voltage and just show the rainbow box in the corner but it keeps on going. The Orange PI PC seems to just freeze up whatever it was doing if the voltage pulls too low. Try it with a stronger power adapter and see if that works for you, it did for me. Finally got this thing working after many frustrating hours trying all sorts of images, etc.