This issue is known to occur with iPhone users on the latest version of iOS 13.4.1 going through the sign-up process (at the time of this writing).
If you encounter the "Camera not detected" user interface screen after successfully taking a photo of your photo ID documents, you may do the following:
Go to your iPhone's "Settings"
Search and/or click on "Safari"
Click on "Camera"
Temporarily turn on "Allow" setting*
Thereafter, you may restart the Onfido process by reloading the website in Safari app, or clicking on the URL sent to you via SMS (in your Messages app)
*After successfully going through the Onfido process, you may set this back to "Ask" or "Deny", whichever option you had it set to beforehand.
For further assistance or more information, please reach out to our Customer Support team via firstname.lastname@example.org or click on the chat widget at the bottom right-hand side of the EQONEX page.