Troubleshooting the device
Swiff provides a PIN to ensure that only the Administrator of the Swiff app is allowed to change the MID. This prevents fraud and mis-use of the app.
To synchronize the card reader with your mobile device with my iPhone/iPad/iPod touch
Ensure your reader synchronises with the mobile device before use. If the reader does not synchronise, please check that all sound settings (as detailed in the reader synchronisation section).
Before you swipe a credit card, tap the 'Swipe' icon and try again. Ensure that the sound settings of your mobile device is set to maximum volume. If the problem persists, re-install the app.