You need some data sheets to figure out on the flash storage devices that you have where can you probe successfully. There's some trial and error on this.

您需要一些数据表来计算您拥有的闪存设备上的哪些地方可以成功探测。在这一点上有一些试验和错误。

You don't need to take anything apart at the PCB level but just the key things you want to do is find all the flash storage devices, figure out how you can access them.

你不需要在印刷电路板上拆开任何东西，但你要做的关键是找到所有的闪存设备，找出如何访问它们。