User's Manual
HF Mifare Easy Module V1.0
ACG Identification Technologies GmbH 36
7.4.3.3.1 Target block
The target block needs not to be a valid value block. If source block is not in value
format the command fails.
7.4.3.3.2 No value block 'I'
Source value block does not match the value format. The value block is corrupted. A
backup block can be used to restore the correct value.
7.4.3.3.3 Copy failure 'F'
General failure during copy procedure or unable to read after write.
7.4.3.3.4 No tag error 'N'
The reader does not detect a response of the tag. There is either no tag present or
the tag does not respond the request.
7.4.3.3.5 Unable to read after write 'X'
The tag was removed from field immediately after copy instruction.
Data was decremented but the tag did not respond to the read after copy instruction,
which is done automatically by the reader module.