ThinkPad T14 Supervisor password

[BMCappelletti]

Password in SIO. you need vertyanov successor or Svod 4 programmer.

Someone wrote here that patching was not doable on 32MB BIOS chip.
I have a T14 gen 1, but it has a 16MB BIOS. Any chance?
I see some people that after trying the patch only got black screen. I don't want to risk, as the machine is usable. Although I could write the original file later if that happens.