I'm trying to remove the "Protection of confidential PLC configuration data." password from a S7-1200 cpu.

I cannot go online with the cpu because I do not know the password.

I tried this method https://support.industry.siemens.com/cs/mdm/109815056?c=161012646283&lc=no-NO, leds blinks as the operation succeded, but password is not reset. Netheir if I try to change it. I tripled check file name, folder names, everything.

What can I do?

It's length is 0 bytes, completly empty.

I noticed that the memory card I'm using is a 6ES7 954-8LC03-0AA0, that is phased out. Could it be this memory card is not compatible with 4.6 firmware?