Hi @MMDaisley, thanks for getting in touch!
That sounds odd — I just checked on this and the Samsung Galaxy S5 should be compatible. I'd recommend troubleshooting your mobile device and, if you're still getting the error message, letting our Support Team know. They'll be able to offer additional assistance and escalate further if needed.
Hope this helps clear things up!
️ Tom | he/him
Seller Community Manager | Square, Inc.
Find step-by-step help in our
Support Center
