Geeetech

Hi to all guys. i have this problem with my Pro b

https://youtu.be/A7g6wExI46M

I read several pages but I could not understand my mistake, someone wants to help me with this problem?

Geeetech pro B 2560A +
Marlin 1.1.8 Bltouch + T8 screw

thanks :-)

Hi to all, i mtry to flash the 1.1.8 bltouch t8screws firmware but during convalidate in arduino, appear this error message.. i know its about the bed measure..but i don t know how to do now,......

please,can someone help me for this?

thank again for all the works.

Marco