I think I bricked my Octopus 1.1

[AdSiJu]

Somewhere along the line I must have flashed the wrong firmware to my BTT Octopus 1.1 or did something to kill it.  I can't get it into DFU mode.  I can't see it plugged in usb.  It doesn't show anything when I type "ls /dev/serial/by-id" or by-path.  nothing shows up when I run "ls usb".  I have tried flashing from SD card, but it never takes the file off the card and changes the extension, the blue light comes on indicating an SD card is inserted, but it never flashes for activity.  I have hit the reset button, double tapped the reset button, held the reset button while powering up, all to no avail.

I had tried to flash the Octopus with firmware to run directly from the Canbus on board, but I couldn't get it running, so I switched to a U2C adapter plugged into the Pi.  ever since then, I can't connect to the board.  

I have looked to see if I had the raspbian glitch that kills USB connectivity, but I am up to date on raspbian, klipper, mainsail, and everything else on the pi.  

any other ideas or am I just going to have to bite the bullet and buy another board?

[atrushing]

3 hours ago, AdSiJu said:

I have tried flashing from SD card, but it never takes the file off the card and changes the extension, the blue light comes on indicating an SD card is inserted, but it never flashes for activity.  I have hit the reset button, double tapped the reset button, held the reset button while powering up, all to no avail.

I am running an Octopus 1 and I found that it didn't like larger Micro SD cards. It wouldn't flash from an 8GB card that I had and I had to find a 2GB card to get it to read the firmware properly. I believe you could also format a larger card with a 2GB partition and it should work as well.

[AdSiJu]

Thanks Atrushing, I tried that too.  I have a 128mb old card that I used and still nothing.  I think I'm going to have to drop $50 on another Octopus.

[mvdveer]

45 minutes ago, AdSiJu said:

Thanks Atrushing, I tried that too.  I have a 128mb old card that I used and still nothing.  I think I'm going to have to drop $50 on another Octopus.

Try renaming the firmware file in capitals FIRMWARE.BIN on the SD file and see if that helps

[AdSiJu]

Thanks for the suggestion @mvdveer.  but that didn't work either.  I may have really screwed it up past the point of rescue

[TitusADuxass]

Try using STM32 to drop the firmware in via your laptop.

I had a Pico that wouldn't go into DFU mode, but it worked via the laptop. 

[AdSiJu]

Thanks @TitusADuxass. I've never done that. but I'll give it a shot tonight.