If your camera is mounted upside-down on a ceiling, toggle "Flip Screen" to rotate the image 180 degrees.
Toggle between:
Paper: "Understanding the Security of IoT Cameras" (IEEE S&P 2020 - by D. Liu, et al.)
Press and hold reset pinhole for 5–10 seconds until you hear “Reset OK” or LED changes. Camera will reboot.
⚠️ If using QR code mode: hold camera 15–20 cm from phone screen, QR code facing lens.