After firmware update, devices is turn on evertime

After firmware update, device is turn on evertime without my interactions, the device is my gate! Never happened it before. Help, please.

Without any information about the device no one can tell you anything useful.

You have to come with things like:

  • eWeLink app version
  • What brand and model device.
  • From which firmware to which firmware version?
  • Have you checked the logs? What do the logs say?
  • Checked all scenes and third party automations?
  • In case of a device with RF 433 MHz capabilities: linked and unlinked a RF 433 MHz remote to it?