Hello,
Please tell us your upgrade steps, have you turned on the bluetooth and WIFI of your phone? Did you see the 100% prompt when upgrading? We will conduct simulation tests according to your situation, and then give solutions accordingly.
Now when the HUB is plugged in, does the LED indicator of the HUB respond? If there is a response, please confirm whether it is red, green or blue? If it is red, please plug and unplug the power again.
If it is blue or green, please reconfigure the network. If the indicator light is off, please contact us at this email: sofabaton@outlook.com, thank you.