SLIX SL2S2602 tag set password fail

[Clara_luo]

Hi,

   I have an empty SLIX SL2S2602 Tag, and I try to set the password by the SET PASSWORD command, but I'm fail to using this command, for the other commands, such as read, write, inventry, select command, are all successful, and I can get the correct response. My detail log and flow as below:

[2025-12-03 15:44:19.945][ 67288 ][info ]: sendCommand - Sent: 260100
[2025-12-03 15:44:19.955][ 67288 ][info ]: sendCommand - Received: 0000BB1C6933080104E0

[2025-12-03 15:44:19.975][ 67288 ][info ]: Successfully obtained UID: BB1C6933080104E0

[2025-12-03 15:44:19.975][ 67288 ][info ]: sendCommand - Sent: 22B204BB1C6933080104E0
[2025-12-03 15:44:19.984][ 67288 ][info ]: sendCommand - Received: 00DF46

[2025-12-03 15:44:20.005][ 67288 ][info ]: sendCommand - Sent: 2220BB1C6933080104E000
[2025-12-03 15:44:20.015][ 67288 ][info ]: sendCommand - Received: 0000000000

[2025-12-03 15:44:20.015][ 67288 ][info ]:sendCommand - Send: 22B204BB1C6933080104E0 [2025-12-03 15:44:20.024][ 67288 ][info ]:sendCommand - Receive: 00CFCF 

[2025-12-03 15:44:20.025][ 67288 ][info ]:sendCommand - Send: 22B304BB1C6933080104E002CFCFCFCF

[2025-12-03 15:44:20.035][ 67288 ][error ]:sendCommand - Failed: Invalid response or NFC tag returned error. Response: 010F

We have run this process in 300 pces NFC tag, but faild 2 pces, I want to know what might cause this kind of problem. @Kan_Li 

[jimmychan]

Please check the memory is already protected or not.

[Clara_luo]

But I can write without password,can I regard the memory as not protected? Or maybe the tag already has unkown password but there is no way to check that.