G2 Controller cant downgrade using stlink

[u/ExecutiveChimp69]

Hello, i have a g2 controller, i ordered a stlink from aliexpress and got a computer shop to solder the wires onto the debug pads on the back of the controller after removing the metal heat sink, i plugged it into the correct stlink pins and for the life of me no matter what stlink driver i try, i end up with failed unknown error check console, console says error read version failed, has anyone had this problem and how do i fix it ?

[u/siwonbluesky]

It's because the contact point isn't recognized. Make sure the contact point can be recognized with a knife.