Just confirmed with @Wayne_Zhang the following message you might see in the EMO App / under Firmware:
Is currently a bug in the iOS EMO App software. (If you are already on Firmware 2.1.1 - the EMO APP should not be showing this message at all).
NOTE … If you press the UPDATE FIRMWARE, this will NOT downgrade your EMO nor will the firmware download as all firmware updates at the moment are temporarily suspended.
It is recommended to wait until an official announcement made by the Living.ai team is made regarding when the Firmware will be made available to download once again. In the meantime, please be as patient as possible while Living.ai are working on these issues.