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[Marcelo Baeza]

Hi, I'm sorry by no to check your response. I could get more evidence.
I need to do changeKey with full encrypt host. But the response is 6Ah 84h. In P5DF081 the message of this error is: SAM Host protection error, only valid in AV2 mode, but I can do changeKey with the RFIDDiscover without problem.
The evidence is:

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[Marcelo Baeza]

Sorry for the writing I could not edit the question.
I was trying do changekey command 80 C1 to key 0x01 type Host. When my key by to insert in updated A is a array of 16 bytes of 0's {byte 0x00} the change is Ok, but the key is different and the response is 6A 84 the response of SAM.
The documentation say: SAM Host protection error, only valid in AV2 mode
Key: 13 FD B0 FF 10 47 24 70 39 91 4C CD 55 66 73 1D
APDU: 80 C1 01 9F 48 EF 74 7A 7E F1 8A D2 76 18 0E 79 8C 23 D8 C6 C1 C5 83 CE 13 4A 6E F4 C8 0A 21 B4 66 FF 91 B3 FE 91 8B 21 23 0A 47 ED 1B B6 3A 33 B4 04 5F 6B 44 4B 8F CF 4E 43 2B 41 49 70 94 2A 63 29 5C 04 AF 21 FE 84 05 F8 6E B9 68

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[Marcelo Baeza]

Hi,
Thanks by your response. The problem is the first time I use this command the response 68 83 and I don't know that meaning: 1 Why this response? and 2 The meaning of this message. The second and others uses, the response is what you mentioned “key is already locked/unlocked”.

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