board

Hi. I'm not sure if i'm in the right place for this but I'm gonna ask anyway. I've got an Oukitel c16 pro and I'm trying to identify the GND point on the board. I've attached a picture of the actual board: Please can someone help!!!

Quoted from 9to5mac.com Apple has confirmed in an internal document to repair staff that it’s identified an issue with the main logic board in what it says is a “very small number” of MacBook Air models. Apple Stores and authorized repair staff have been informed to replace the main logic...