He clicked on the System settings, scrolling down to the advanced section. He had heard rumors in the developer forums about a hidden diagnostic layer built into the controller software for troubleshooting edge cases. It wasn't documented in the user manual; it was whispered about in GitHub repositories.
If you are locked out with "incorrect password," try these methods: password developer option unifi tv hot
Visit local Malaysian tech forums like Lowyat.NET for the latest developer password threads, as users constantly update these when a new "fix" is found. He clicked on the System settings, scrolling down