You need to add a bus card to your phone before you can use your phone to swipe the bus card. Taking the iPhone 6s phone as an example, the specific adding method is as follows:

1. First, go to the iPhone 6s desktop Open "Settings" to enter.

2. After entering, select the "Wallet and Apple Pay" option.

3. Then click "Add credit card, debit card or transportation card" to enter.

4. After entering, select the transportation card item to add to the transportation card. After the addition is successful, you can use your mobile phone to swipe the bus card.