Revolution Pi Connect 4 - Http Proxy - Deep packet inspection - Certificate

Hello,

we want to install a revolution pi connect 4 in our infrastructure.
It runs behind a http proxy which is doing deep packet inspection. I already tried to implement the pem certificate in the config.json, but we getting failure messages regarding the certificate.

In the faq´s is written : “…that will be installed into the root trust store

How can i check, that this certificate is really installed? Where can i find it?
When is the installation triggered? Do i need to reboot the device when i changed the “balenaRootCA” key?

Thank you in advance!