HTTP HEAD is a method to request the HTTP headers from an API endpoint. This method is not supported by the RICOH THETA API and should not be used as the behavior across models appears to vary.
I recommend you use the http://192.168.1.1/osc/info instead to check if the camera is connected to your mobile app.
A developer recently asked about the behavior of the RICOH THETA camera models when an HTTP HEAD request is sent.
These are the result of my unofficial community tests.
result: returns header
curl –head http://192.168.1.1
HTTP/1.1 404 Not Found
Connection: Keep-Alive
Transfer-Encoding: Chunked
result: hangs
curl –head http://192.168.1.1
*** NO RESPONSE ***
result: responds the same as Z1
curl –head http://192.168.1.1
HTTP/1.1 404 Not Found
Connection: Keep-Alive
Transfer-Encoding: Chunked
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