Open your phone camera
Point the camera at the complete QR code in good light. On compatible devices, tap the network notification and confirm joining. Some Android devices use their network settings scanner or Google Lens.
If no connection prompt appears
Open Wi-Fi settings, select the network printed on the sign, and enter the password exactly. Check capitalization and spaces. The sign cannot bypass captive portals or enterprise authentication.
Check the network too
Stay within range. A readable code cannot correct an outdated password or a router without internet access. Ask the host to confirm the details.