Undocumented Bottom Connector on A1 Mini

Does anyone know what this connector is for? Future use? Deprecated feature?

Externally there is a cable guide modeled into the base plastic, so I doubt it’s for production purpose like firmware flashing or calibration.

Internally there is an 8pin Connector. Looks like Molex picoBlade but must be something different (JST?) because with picoBlade you can’t see the mounting brackets from top.