I have a 2017 Camry and this is what my fob looks like. The videos for 2017 Camry (by other people) were for a different fob and different size battery. This is the one I needed, thanks.
The only other thing is. that it also depends of the age and type of battery used to replace the one that's not working. if that doesn't work probably need a new remote. in my case it was the battery.