Thanks!!! this finally solved the problem. For anyone else trying the crack:
Just make sure that you disable internet in step 12, otherwise, TT will be updated and it would overwrite all the changes you did with DNSpy!!:
Instead of 12. Close the dnSpy program and run TT H&B 2019. Your product is now "Activated"
12. Close the dnSpy program, DISABLE INTERNET, and run TT H&B 2019. Your product is now "Activated"
If TT asks to connect to internet just ignore and click on whatever option is available ( cancel or try again), it should open TT, then open a tax, or create a new one, in the menu row go to "Online", "Updater Preferences", and select "I do not have an internet connection, I want to get updates on my own".
13. You can enable Internet again. It won't update.
