pn7150 occasionally auth fail

[1006367471]

I use PN7150 on my board,my code make 7150 auth mifare S50's block one by one ,but it  occasionally response auth fail,the status returned is 0x03,it happens occasionally,and it happens at different blocks at different time.Does anyone know this problem？

[estephania_mart]

Hello, 

Which type of MIFARE are you using? Also, by your board, do you mean the evaluation board? Or is it your custom board? 

Regards, 

Estephania