something about how to update the hex firmware via cura

If your computer cannot automatically generate ports,
You need to install the driver manually.
you can refer to this: https://www.geeetech.com/forum/viewtopi ... RlcFtWdCG4
2.Download the hex firmware you need on the official website
PS:(I downloaded A20M)
you can download this link: https://www.geeetech.com/
3.choose the settings-printer-manage printer
4.choose printer-update firmware
choose you download the hex firmware
5.done