I don't really understand the problem you have. I've an Avalon Nano 3 which I run with a Dell 165W USB-C power supply for month without any problems. I once had to reboot it but that's all.
did you read my post above ?
my nano 3 simply stopped mining and I am getting "Nonsupport Adapter" on the screen now :
See photo :
https://i.postimg.cc/C5dXhR3B/IMG-9271-1.jpgI have more Nano 3s , all using genuine Canaan power supplies so I tried those and it does not work. I also tried different non Canaan power supplies and same message.
I did all the things listed above and still I get this message.
I contacted the support and they cant troubleshoot over email, I need to send the device for repairs. As I openned the miner , I lost warranty. I opened it to add heatsinks as per RedPandas recommendation which did bring down temps considerably vs stock. All my other Nanos have the same mod and are working ok. just this one stopped so I am asking on the internet to see if anyone had same issue. Support said to send it to Malaysia for repairs which comes at a fee, its simply not worth it as it would cost me lot more than a new nano to post it, get it repaired for a fee and pay for postage back.
I posted it in the Telegram group but no help.
Like I said, another person I know who bought Nano 3 as well recently JUST got the same problem after simply moving the miner from one room to another. Exactly same issue.
I hope the above explains my problem ? Doesnt look like though anyone here had this issue.