Nano not powering up automatically after power comes back

After a power failure, Nano is not automatically powering on when the power is back. When I unplug and plug the barrel jack, it starts to work. I’m using the 5v 4amps barrel jack to power. Please let me know if there is a fix for this.

Do you still see the led light up after connecting power?

Nope, only after I unplug the barrel cable and put it back on, the led lights up.

Why there is a “power failure”? How did you do this?


There is no update from you for a period, assuming this is not an issue any more.
Hence we are closing this topic. If need further support, please open a new one. Thanks