Toshiba remove bios password Toshiba S55T-B5273

Hi,
I need help with to remove/clear the bios password on a laptop Toshiba S55T-B5273.
Jumpers are not clearly indicated.
My guess is to short some combination of the 3 jumpers marked G1, G2, G3.
Any help is much appreciated!

 

[cifam]

password is on the kbc i think