8.1 How to upload firmware?
The motherboard of the printer is already burned with firmware when it leaves the factory. If you
have firmware problem when you are using the product and need to upload firmware, you need to
use the Arduino IDE to burn. Arduino1.0.1 is recommended, and the download address is:
https://www.arduino.cc/en/Main/OldSoftwareReleases#1.0.x
The way of burning firmware, please refer to:
http://www.geeetech.com/forum/viewtopic.php?f=13&t=17181
Firmware download address, please refer to:
http://www.geeetech.com/forum/viewtopic.php?f=10&t=17046