Screenshots of codes — tickets, wifi details, invites — scan exactly like the original. Display the shot full-screen and scan it with another phone, or long-press it on iPhone and open the link directly.
Paste any link above and print the code.
Then scan it with your phone — the fastest way to learn what a good scan feels like.
Open the screenshot full-screen at full brightness and scan it with the other phone's camera exactly like paper — point, wait, tap the banner. Bigger is better: pinch-zoom is fine as long as all three corner squares stay visible on screen.
On iPhone, open the shot and press-and-hold the code, then tap the link. On Android, open it in Google Photos and tap the Lens button. No second device, no retyping, no forwarding the picture to yourself and back.
Only at the extremes. Full brightness and a straight-on view scan first try; a dim, tilted, heavily-cropped shot may fail. Keep all three corner squares in frame with quiet space around them, and any modern screenshot reads cleanly.
