Thanks for the response. So I grabbed a second Square Reader from BestBuy and that did not read a card or generate any checks in the Square Reader tutorial either. Then I took my original Square Reader to the AT&T store. Salesperson had the OneX as well and my original Square Reader did not function either. Disabled Beats. Still no go.
I talked with an Engineer today, unfortunately, the HTC One is an unsupported phone. If you have bought a new crad reader I can claim the redemption card for you, please just write back in with the redemption code.
I've had a Square card reader since I had my Samsung Captivate, but I don't hardly use it anymore. I just tried installing the Square app on my phone, plugged in my reader, and it works fine. No issues, and I didn't have to disable anything.