new motherboard question

[LittleTrip]

i own a new A20M and i had to replace the motherboard do i need to download or upgrade this board before printing??? should it not come with software???

[William]

Hi, If you replace the motherboard, there is already the corresponding firmware on the motherboard.
Is the software you are referring to as slicing software?
If it is a slicing software, you can download it on your computer, you can use Repetier Host or Cura.

[LittleTrip]

i was talking about the board itself

[William]

Hi, I am not very clear what you are referring to,
the firmware is already on the motherboard.
What software are you referring to?
You can describe it in detail.

[3DAngel]

The same board is used on different model of Geeetech printer.
So how the seller Will sent you the board for your printer model? Unless the seller told you and warranty you that they did the FW for your printer.
Otherwise, I would just flashbthwbFW with the right configuration for THE printer model you have.

[LittleTrip]

im trying to find the firmware for the A20M with the new Gt2560 board if anyone knows a link that can help me that would be great

[William]

Hi, If you open the motherboard after installing it on the printer,
The screen does not display the A20M.
You can download it at this URL: viewtopic.php?f=20&t=17046
You can refer to this: viewtopic.php?f=20&t=17181

[LittleTrip]

my A20M is almost good to go haha well i got the screen fixed it was the firmware missing a u8glib file i got a hold of someone from geeetech and they said sometimes the new boards will delete the u8glib files for some reason and that i needed to add it and when i did boom it worked hehe

but now i got a new problem my print bed motor wont move all it does is jerk and i no its not the motor i tested it and it works fine if i plug it into the other slots so now im stuck again lol

by the time im done i should have replaced everything on this printer lol good thing for my anycubic lol

[William]

Hi, you can try to swap the motor wires for inspection to determine if the motor wires are broken and this happens.
If there is no problem with the motor cable,
you can try to swap the position of the motor cable on the motherboard to confirm if there is a problem with the motor wiring slot on the motherboard.

[DzzD]

but now i got a new problem my print bed motor wont move all it does is jerk and i no its not the motor i tested it and it works fine if i plug it into the other slots so now im stuck again lol

Maybe check the Vref of the stepper motor driver, it could explain the jerk (not enough torque)