rats with smartphone as card

[vso2004]

Hi.I use this module with Google Pay. It dont work. RATS always return collision error or timeout. It is mistake on pcb. Y1 is 27.0 mhz. It must be 27.12. I replace Y1 to 27.12. It work fine now as Pay Terminal with smartphone.
Best regards, Volkov Serge

[tueddy]

Can you explain a bit more?

[vso2004]

ok. Resonator must be 27.120MHZ not 27.000. If resonator is 27.000 RATS work fine with PayPass card, but not work with SmartPhone as PayPass card. RATS return error.