Last purchased Eufy Cam 2C with different system version of all others installed 2C cams

I’ve got two Eufy cam2c kits and after few weeks one more cam last year.
All them has System version 1.7.4 (2021-04-27 last update) and Subsystem version 1.0.91-20210303.
All worked fine.
Than I purchased and added another Eufy Cam 2C (NOT PRO) and added to Base without problem BUT Motion Detection is unpredictable.
Sometimes works , sometime doesn’t work, on the opposite of ALL other cams installed.
The difference is the System version 5.2.7 (2021-04-09) ; Subsystem version is the same of all other cams 1.0.91-20210303.
What’s the difference between the cams?
I hope that an answer exists to explain this strange fact.
Now I am quite disappointed and I am not confident to add more cams.

Thank you and kind regards.


With the supply chain shortages Eufy, like many other companies, has had to use different chips in their products. This results in different software versions for the same product model. I have 2 different versions for my 4 2C Pros. Others have reported the same issue with 2Cs.

You might try switching locations of the cams to see if its really a camera or software issue or just location and field of view settings.