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Killed Gt2560 after failed marlin upload?

Posted: Wed May 20, 2020 2:41 am
by lordalex
Hello Guys,

i kind of killed my board. Firmware upload failed and after that i couldnt upload any marlin anymore.

Tried to flash a new bootloader with my usbasp and it finished the upload successfully. After that i still cant upload marlin via usb cable and if i try to upload marlin via usbasp programmer i get at the end the error that the port is not available. It finishes, but shows after all an mismatch error.

I tried to use an arduino nano as a isp flasher, but if i connect the gt2560 i get an error.

Is something burned on the board? maybe usb- connection somehow?

Re: Killed Gt2560 after failed marlin upload?

Posted: Wed May 20, 2020 9:26 am
by William
Hi,it should be the motherboard is broken, you need to replace it.