Go to the iHost settings page and look for “Link eWeLink Account”. Once you have done that, the iHost will show in the eWeLink App on your smartphone. There you can go to “device settings” and update the firmware.
As far as I know, this is still the way to do the upgrade over the air.
Hi, you need to login to your eWeLink account to get the OTA, please go to settings page to link your eWeLink account, once logged in, the new firmware will be pushed to your iHost (you need to manually click the update button)