Geeetech

Ok, i need to install the bootloader before firmware? Led D7 is on, its mean the bootloader is instaled?

Hello,

I've tried to update the firmaware throught flash loader demonstrator, but i'm dont know what the wrong step i do.

Now, seems it dont have any firmware working on printer, the LCD is blank, the nozzle fan is not working, by the way, the PRINTER IS NOT WORKING.

Please, someone can help me ...