AnsweredAssumed Answered

Reading Mifare DESfire using PN7120

Question asked by silvian mandi on Feb 13, 2017
Latest reply on May 22, 2017 by Jorge_Gonzalez

Hello,

I am using NXP NFC reader Library - export controlled on PN7120.

All is ok reading UID of 14443,15693 and DESFire.

 

I try to read files in Mifare DESfire (files are free, without read key) : no success

Below NDEF exchanges between uC and PN7120:

Sending app select V1 {0x00,0xA4,0x04,0x00,0x07,0xD2,0x76,0x00,0x00,0x85,0x01,0x00},  returns OK  {0x90, 0x00}

As proposed in library, CC select {0x00,0xA4,0x00,0x0C,0x02,0xE1,0x03} does not work: returns {0x6a, 0x82} which is file not found

I tried by program all combinations from 0x0000 to 0xFFFF for file number: it succeds only for 0x0002, 0x3F00, 0x3F02 (I have read that 0x3F00 is master file)

I selected 0x3F00 (which works) and then a read command , reply is {0x6a, 0x82} which is file not found....

 

Anyone a tip ?

 

Silvian

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