If you connect your camera to your laptop with Wi-Fi, can you use the API commands from something like Postman?
For the SC, you need to set the API version to 1.
For RICOH THETA S and RICOH THETA SC, since the API version is set to RICOH THETA API v2.0 when connection is established via wireless LAN, you need to use clientVersion to set the API version of the camera to v2.1.
Can you connect from your mobile device to the camera with a normal browser like Chrome or ping it with a network tool?
Note: Screenshot is with a THETA V, not an SC
Info is a GET command and should work in a browser.
http://192.168.1.1/osc/info