Geeetech GT2560 Rev A, iscp connection

Hello. I got some problems with my CTC Prusa i3 wooden 3d printer. This was a cheap kit of eBay. And the seller has locked the bootloader. So there is no way to upload a new firmware to the device.


I am trying to use a Arduino as ISP and connect to the iscp port on GT2560. But I can't seem to get it right.

If I connect it as this post describe, I get invalid signature.

Can someone confirm which ports to use?


[www.geeetech.com]




This is my device. The 10pin port is rotated, but I have tried different wiring.




Thanks

I have the same problem with this board too. I tried burn bootloader with my Arduino Mega but no luck.

i have the same issue, with the same board. following, and thanks for the direction to try!