Unknown BlinkUp Status Code

At power up, some devices are starting to produce an unknown blinkup led pattern and causing the device to be unresponsive.

The pattern is:
Blinking red 3-5 times followed by solid green, then repeats.

Any ideas what this means?

What imp are you using? That sequence — which is a combination of various BlinkUp status patterns —suggests the device may be receiving a impOS update and that’s not taking for some reason.

I’d expect to see some amber flashes in there then a brief green flash (device is connected to the Internet) before the solid green appears. Can you provide a device ID so we can check the logs, please?