Hi brentboren,
Thanks for the reply! I tried that approach, and naming the file in all caps, and a slew of other things I found from searches. None of them worked, BUT… As it turns out, it WAS taking the new firmware. The issue was this: the stock display/control card combination shows a dark screen for a short time (I don’t remember if there’s a progress indicator or not), then boots up ready to go. MY current hardware combination (BTT SKR mini E3 v2 and the BTT TFT35 v3 display does NOT behave the same way, and I was expecting the same behavior (nobody said to expect anything different.) The display card boots up immediately as normal, “no printer connected,” then a moment later after the control card has flashed, “Ender 3 ready.” Last time I tried flashing, I changed the printer name in config.h to “Ender 3A,” and when the machine booted, it said “Ender 3A ready.” Bingo! Success!!
NOW all I have to do is get the stupid BL Touch to work! X & Y home fine, Z shoots to center and goes up, printer shuts down “with errors” unspecified. Guess there’s two ways you can connect the probe, and each one has it’s own specific settings in config.h. Can’t find solid information (found several versions, and they don’t agree with each other.)
Guess this is why getting a machine that isn’t made in China is a better idea, when it comes to support from the manufacturer!