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Replying to

Bill Cypher

I tried the boot to a flashcard with nothing but firmware bin on the root method with no luck.

I am going to try DTU mode and make flash from the raspi next time I get a chance to work on it.

SUPERMAX 11mo ago

Yes DTU mode should work if SD card didn't

You may need to add jumpers per board you are using, to put in flash mode.

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Discussion

Bill Cypher 11mo ago

I spent all day trying to force DFU mode with no luck. I think maybe I borked it by loading STM firmware onto a GDM chip when I first flashed from my pi3b. Need to keep digging.

I ordered an st-link to try to recover and a new mobo in case that doesn't work. Going to solder a header onto the SWD pins while I wait on shipping.

SUPERMAX 11mo ago

Damn, best of luck to you

Bill Cypher 11mo ago

I considered alternate motherboards but I can't see why. What value would I get if I'm already running a 32bit microprocessor in the stock board?

SUPERMAX 11mo ago

Nothing it should be fine

Is this just a creality board?

Bill Cypher 11mo ago

Yep, stock creality board.

I think the issue is I followed bum directions and flashed stm32 firmware onto a gd32 chip.

Don't trust, verify... not just for bitcoin.

SUPERMAX 11mo ago

Probably the issue

Don't keep messing that board up and you'll burn her possibly!