Thinkpad T480 supervisor password removal

[Peter]

Hi everone!
I've bought Lenovo Thinkpad T480 recently.

Unfortunately it's locked with Supervisor Password.
What I've to do in order to remove it?

[Black Raven]

@Peter
ok, but need your SPI dump
Check your PM

[Peter]

@Black-Raven Thanks for quick reply!
Oke, I'll send you as soon as I make it.

What SPI programmer should I use for making the dump?

Update: Ah, I see your message in PM chat, thanks!