Patching A20T firmware for 3dTouch

[rebornscout]

I'm also in exactly the same situation - there is also another thread with someone else having this issue. Clearly there is an issue that needs to be sorted by Geetech!

[William]

Hi,When you use the Firmware Toolkit to update the firmware,
While uploading the firmware, press and hold the reset button of the printer,
Upload.

[rebornscout]

No, still not working. It still gives the same result as this viewtopic.php?f=117&t=69693

[andrevanderweide]

i updated yesterday the firmware with the toolkit because i put a 3d touch on it and is now working i used a usb3 connection on my computer.

Grt André

[lmcmulle]

When we try to use the firmware uploaded it won’t it forever times out. Some other searching revealed that the perhaps the board doesn’t have a boot loader installed and that’s why no one can patch the firmware. I’m traveling at the moment, But I’m going to try and install a boot loader and then try and patch it. I’ll document the process if I’m successful and share it with everyone @Erica

[lmcmulle]

i updated yesterday the firmware with the toolkit because i put a 3d touch on it and is now working i used a usb3 connection on my computer.

Grt André

Can you describe what you did? (did you hold reset as they suggest, did you have to install a bootloader) ...

[lmcmulle]

Hi,When you use the Firmware Toolkit to update the firmware,
While uploading the firmware, press and hold the reset button of the printer,
Upload.

Can you describe that in a bit more detail william? At which point do you release the reset button, AFTER you've pressed "Upgrade from Local"?

[lmcmulle]

I'm pretty sure the issue with my printer is that there isn't a bootloader on the board. which is why AVRDude times out constantly. I've seen some videos on how to install a bootloader with a Arduino Uno... @William or someone from Geeetech can we get instructions on how to install a bootloader on this board?

[andrevanderweide]

i updated yesterday the firmware with the toolkit because i put a 3d touch on it and is now working i used a usb3 connection on my computer.

Grt André

Can you describe what you did? (did you hold reset as they suggest, did you have to install a bootloader) ...

I did not have to install bootloader ia started the toolkit load the new file local and started the upload and then pres the reset short and it started.
today i leveld the bed and started the first mix color print

[lmcmulle]

Thanks man, seems like you got lucky and got a bootloader on yours, Mine is getting returned to amazon monday if I don't get any advice on how to fix this --- sad too as this printer has so much potential.