Hello There,
I'm working on a NFC based application based on Mifare Desfire EV3.
Currently configuring the card using NXP Pegoda reader via RFIDDiscover software.
I'm facing issues while changing the Application specific Master Key (i.e., Card Key 0). I always get "Permission Denied" error. While I can easily change other keys (Card Key 1, 2 for instance)
Before changing the Key I tried authenticating with the default Key and authentication succeeds but changing the key gives error.
I have attached some screenshots from RFIDDISCOVER software-
The Error
![KeshavAggarwal_0-1722598177528.png KeshavAggarwal_0-1722598177528.png](https://community.nxp.com/t5/image/serverpage/image-id/291698i5922EFE3A6722FF2/image-size/large?v=v2&px=999)
App Configuration
![KeshavAggarwal_4-1722598481023.png KeshavAggarwal_4-1722598481023.png](https://community.nxp.com/t5/image/serverpage/image-id/291705i215F6B7A46814E4A/image-size/large?v=v2&px=999)
Key Store
![KeshavAggarwal_5-1722598499831.png KeshavAggarwal_5-1722598499831.png](https://community.nxp.com/t5/image/serverpage/image-id/291706iED370D5F6FF04BE2/image-size/large?v=v2&px=999)
Any help is appreciated.
Regards,
KA