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Resposta curta
Usually the screen is too dark, the QR is from another ticket, or the ticket changed hands or was refunded. Your pass shows the state of each ticket, so start there.
Como resolver
Make the code easy to read. Turn your screen brightness up and hold the phone still, about a hand away from the scanner. Close other apps so the pass stays on screen.
Show the right ticket. If you hold more than one ticket, use the switcher at the top of My pass and show the ticket for the person going in. Each one has its own code.
Check the ticket state. Under the code, the pass says whether the ticket is valid, already checked in, transferred or refunded. Only a valid ticket lets you in. A ticket checked in by mistake is fixed by the door staff.
No signal at the venue. The pass keeps the last copy it loaded, and says when it was last updated. Open it once before you leave home so it is ready without signal.
Still not working. Open Help and staff in your event and call or write to the organizer. The door staff can also find you by name.
