Received my new shorter M.2 extender board yesterday with no instructions. It comes with 2 ribbon cables, which are longer for folks who intend to mount the board on top of the SBC (improving access to the microSD slot). I noticed that the contacts on the ends of the cable are now on opposite sides.
But, when I examined the board’s M.2 connector, I could see that the contacts grip the ribbon cable on both sides. In other words, it didn’t appear to matter which side of the ribbon cable has exposed contacts, from an electronics perspective…so I thought.
When Radxa moved the M.2 connector to the opposite side of the extender board from the SSD, they also reversed the pinout order!
Now, I have a dead Rock Pi 4B.
Perhaps @jack or @luffy… someone should inform Radxa that they need to provide their customers with some installation instructions, which includes a fair warning that the pinouts on the new M.2 extender board have been reversed. That would have avoided this from happening.