How to use an NFC pass with Android
If a user has stored an NFC enabled Google Wallet pass on his phone this is what he needs to do in order to trigger the NFC Reader to read the pass.
Please note that this process may vary depending on the vendor of the user’s device and his settings.
1. Wake up the screen
Android requires the screen to be awake in order to read an NFC pass. It’s usually not necessary to unlock the phone.
2. Tap the phone to the NFC Reader
After waking up the screen the user needs to tap his phone on the NFC Reader.
It’s important that the phone stays in range of the NFC reader until the app displays that the pass was read. On the user’s phone Google Wallet will display a preview of the pass and a checkmark when transmission of the value was successful.