For $29/mo, we provide access to advanced level technicians who will answer your questions on any Macbook board related matter to the best of their knowledge promptly & walk you through how to solve your problem so you can deliver a working board to your customer.
Nothing strange showing in Hardware monitors, ran Apple Hardware Test and no issues shown. I can't seem to download any compatible ASD's that will extract correctly so havne't been able to try that.
THANK YOU! I've been trying to find ASD's I could download and use. Anything I was able to download wouldn't extract properly. Spent many hours searching for solutions.
It appears those download links you provided were not the complete files? One was 74MB the other 43MB and both were instructions, references only for the ASD software.
Full ASD 3S155 EFI + OS should be around 2.7GiB, it should work on all 820-3115. Download from the usual Russian torrent.
(boards with Mojave BootROM update may not boot ASD EFI but ASD OS will still work)
You can also use MRI 64-bit.