DS1000z serie unlocking

[PositiveE]

All I can remember is this:
https://www.eevblog.com/forum/testgear/you-can't-unlock-a-mso1000z-series-scope-without-a-memory-dump-and-other-lessons/msg772022/#msg772022

I don't know what I did with the files

[phd0]

[Supported Model]    All the MSO/DS1000Z Series Digital Oscilloscopes
[Latest Revision Firmware Date]  2017/03/24

[Updated Contents]
--------------------
v00.04.04.03.02  2017/02/06
     - Improved the LXI module
     - Fixed the freeze problem when upgrading based on the boot version of
       0.0.0.13
     - Improved the menu in the language of Traditional Chinese and Korean
     - Modified the failure when downloading waveform to the source module
     - Fixed bugs about reading the memory data through SCPI commands
     - Fixed bugs about Measure
     - Fixed bugs about Filter

[chebo]

Hello everyone!
I want to add options to my device. But the keygen website works strangely. I enter the serial number, then hover my cursor over the options field, and I'm immediately given a private key. I don't even have time to type in which option I want! Moreover, even if I then enter different options, the private key doesn't change. Can someone explain?

P.s. Oh, I think I figured it out! The key for the option isn't the private key, but what's shown in the pop-up window. What a dumbass! )))