Undo secure at Mifare chip

valentinvogl — Mon, 19 Sep 2016 20:07:07 GMT

Hi,

I accidentially secured a Mifare NFC-Tag with NXP TagWrite.

But not just the write protection.

I activated the permanent protection.

Is there a way, to delete the chip?

I can't do anything except reading it.

Formating is also not possible.

I also can't undo the protection.

There is always a error message with chip is partially secured.

Thanks :smileyhappy:

Re: Undo secure at Mifare chip

Jorge_Gonzalez — Mon, 26 Sep 2016 20:52:29 GMT

Hello Valentin Vogl:

I think since it is a "permanent protection" the security will be irreversible.

But just to confirm, could you let me know what type of MIFARE tag you are talking about?

Regards!

Jorge Gonzalez