At the moment, as the latest Firmware version of 2.1.0 / 2.1.1 is currently temporarily suspended, you might see a message on the EMO app that it needs to be updated. Unfortunately, if you try and do an update it will not work until Living.ai re-enable the firmware once again.
To advise, If your EMO is currently on firmware version 2.1.0 You are pretty much updated to the latest version of the EMO firmware. The quick/late-minute addition of Firmware 2.1.1 was to add a small tweak to EMO regarding the way he responds when you call out his name (Wake Up Training). (I shared a quick note on those over on this thread, you can check it out here -
Hopefully, the firmware will be re-enabled soon and anyone that is on 2.1.0 can update to 2.1.1 or maybe 2.1.2 (depending if Living.ai add any further small update/bug fixes).