What when Homey doesn’t do anything when powered on ? Problem with power connection or Homey itself?
The same problem here by the start this evening…
The plug for the adapter clenches a bit.
Try to turn it.
As to be found all over the community: try another USB charger/plug with at least 2-2,5A (and maybe another USB cable)
Please include the type of Homey you have, different Homey models may have different issues.