It does nothing.
The issue seen is no boot, no green light, blue & red lights are on but steady, no HDMI output when I previously could go to the Raspberry OS desktop and do anything I’d be able to do in a Raspberry Pi OS environment & had long up times (long being a relative term since I just bought it & started playing around with it). The issue follows the eMMC (that is either board will boot but only with the other eMMC).
Under the assumption that I could have an issue of corruption rather than an irrecoverable hardware fault, I tried to follow the directions at Libre Computer AML-S905X-CC eMMC Flashing Steps from Linux : so doing both an eMMC erase (again, in case it was a corruption) and running the script to make the eMMC show up as USB mass storage. Unlike previous times with these scripts, the drive remains undetectable.
So my assumption is that some sort of random hardware failure happened.
In summary:
- I have some sort of a failure.
- It makes the drive undetectable when following the directions at the eMMC flashing thread.
- I have done this before successfully (that is, I’ve had the full Raspberry Pi OS installed on both eMMC modules before this happened).
- The problem follows the eMMC rather than the SBC.
Of course, any additional troubleshooting suggestions are welcome but that’s what I have so far.