Fried eMMC?

[belfastraven]

When you reinserted the emmc, did you press the reset button (reset and recovery buttons are 28 on wiki drawing) afterwards?

Multiple times. I even fully removed power in between tries.

Have you tried to use the rkdeveloptool to flash the emmc ,  rather than rkflash?   I've never had to patch it--I've used it on a rockpro64.  The source is here

more info


here

I believe it is available in some distributions as well.  

I'm wondering what you are actually seeing with rkflashtool.   I thought  (from the wiki)  that the EMMC was a Sandisk device, not a Samsung....
You're sure, also, that the switch is in the proper position?..I just ask becuase I sometimes have gotten switches in intermediate positions,  because I am a klutz...

It would be good if you could find your EMMC adpter...