@karelson,
You'll need to rerun all the commands, not just that last commands.
Launch Clover Configuration, open the Config file from the EFI partition.
Click on SMBIos on the left and click on the 'magic wand' on the right.
Select the model you want from dropdown to generate a new key, just click on the shake button a few times and save the config.
Make use to use the Clover Configuration from Tools attached on post #1 or download version 4.25 or newer if exist.