As she navigated the manual’s "Troubleshooting" section, she realized the "Error Code 404" wasn't a connection failure. It was a prompt. By following the "Reset to Factory Settings" steps while standing in the center of her room, she felt the walls of her physical world thin out.
Ensure the device is charged. A low battery can cause Bluetooth instability. Magicsee R1 User Manual
Settings → Security & restrictions → Unknown sources → Allow Magicsee R1 User Manual