This reminds me of the time XBox 360s were hacked by drilling the processor at a precise location, at a precise depth [1].
At some point, a tool was made to signal if you drilled far enough.
At some point, a tool was made to signal if you drilled far enough.
Sometimes I wonder how these sorts of exploits are discovered. It must take some serious in-depth knowledge of the target system and a lot of trial and error.