ThingMagic M5e-Compact - Manual (Page 239)

Release Version 1.0.34
Appendix D: Deprecated and Modified Commands 239
The kill password must correspond to the kill password programmed in the tag.
Note
If the tag’s kill password is set to 0, the protocol does not allow the tag to be
killed. A non-zero kill password must be set (using the
Write Tag Data
command) before the kill command succeeds. The RFU field should be set
to 0.
FF 07 26 03 E8 11 22 33 44 00 ?? ??
SOH Length OpCode Timeout (ms) Kill Password RFU CRC