Here's some written instructions for using NFC card for your reference:

  1. Ask if user logged into Zupass on their phone
  2. For iPhones, tap the top of the phone with the center of the card
  3. For Androids, usually the NFC scanner is slightly above the center of the phone

Things to note:

More info from our friends IYK: https://iyk.app/how-to-tap