Station managers with cards or wristbands

1. Turn on NFC: in Settings, search for “NFC” and enable it.
2. Hold the card or wristband to the back of the phone, near the middle or the camera, and keep it still for a second.
3. If it won't read, remove a thick case and try a bit higher or lower: every phone has its reader in a different spot.
4. If the screen says “card already marked”, that voucher was already handed out: the mark stays on the chip and can't be erased.
5. If it says “copied card” or “only valid on its own card”, don't hand over, and call the organizer.
6. If a good card won't read at all, the person goes to the organizer: a voucher written to a card isn't handed out by reading a QR.

The organizer gets the cards and wristbands; QRnow doesn't sell them. A card is written only once.