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Any chance the vendor left the flash memory "unlocked" on the STC8G so we could download and reverse engineer it? Although it might be easier to simply write our own. There's enough extra pins on the STC8C to read a PS/2 kbd. We should be able to re-flash the STC8G in-circuit by adding only 2...

Sorry. My flash drive with the boot floppy image has no LED. I did try another drive and I see activity as soon as power is applied but still cold boot is missing the "A>>[FDD A]" option. Keep in mind that I'm also booting with a CF card that has no setup info written to it yet. In another...

Ok so I re-created the event. When (cold/power-on) booting with a CF card that has never had the "BIOS/CMOS" setup info written to it, After the memory check, the banner at the top of the screen doesn't have the "A>>[FDD A]" option. And the system boot (or attempts to boot) from the CF card then...

Hmmm. hard to remember exactly because it happened so fast :) I had an un-partitioned CF card inserted and it seemed to want me to run bios setup first. Then I got a boot error from the floppy image (after a cold boot) but it worked after a warm boot.

I just had great success on my V2 using n0p's modified BIOS. https://github.com/jinshin/8088_bios/wiki I used rufus to copy a DOS 5.0 install floppy image to a 1GB flash drive and after a couple of tries it booted allowing me to format and install DOS 5 on a blank CF card.

While waiting for the seller to respond you may want to try re-seating all of the socketed chips. Especially the BIOS chip.

Just got my V2 a couple of weeks ago and I'm pleased to say everything worked as expected. (no video issues or bad solder joints) I'd like to add a thank you to Sergey, n0p and FreddyV for their excellent contributions. Note to anybody out there with flash drive issues. Read the instruction that...