You shouldn't have any trouble using your Square on your Galaxy S7 as it is a supported device. If you continue to have difficulty, here are some tips that solve the most common issues people have with the Square Reader:
- Remove any case or cover from your device. Some cases prevent the reader from plugging in completely.
- Unplug the Square Reader and firmly reinsert it while the Square Register app is open. You’ll hear a small click when the reader has been correctly inserted.
- Remove the app from your device and reinstall. See Google’s support site for instructions on how to do so. Before uninstalling, make sure you’ve uploaded any payments accepted while in Offline Mode by connecting your mobile device to the Internet. Failing to do so will permanently lose all offline payments that haven’t been completed and the funds will not be captured.
- Turn your mobile device off and on.
- Disable any Bluetooth wireless headsets or earpieces while taking payment cards.
- Make sure there is no lint or dust in your headset jack and wipe the metal connector with a cloth.
- Make sure the black magnetic stripe is facing the thickest part of the reader.
