Geeetech

You can use the same as with the v3 control board the use the lcd and sd card connetors there are the pins you can use to flash the board.
https://www.youtube.com/watch?v=yVgReNF1KQA
https://3dprinting.stackexchange.com/qu ... bootloader

grt André

lmcmulle wrote: ↑

Sun Dec 15, 2019 12:20 am

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.

Hi,Are you trying to press and hold the printer reset key while you select upload firmware?

you can refer to this:https://www.geeetech.com/forum/viewtopi ... 20&t=69705

If you still can't upload, you can contact your sales to replace the motherboard.

who do I contact to get motherboard replacement. I ordered this from Amazon?

William wrote: ↑

Sun Dec 15, 2019 4:28 pm

lmcmulle wrote: ↑

Sun Dec 15, 2019 12:20 am

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.

Hi,Are you trying to press and hold the printer reset key while you select upload firmware?

you can refer to this:https://www.geeetech.com/forum/viewtopi ... 20&t=69705

If you still can't upload, you can contact your sales to replace the motherboard.

Yes, I'm pressing and holding reset i"ve tried 3 different computers and different software to patch including the Firmware tool from Geeetech. The issue is that the motherboard doesn't have a bootloader. I think I need a new motherboard. How do I get one of those?

Hi, If so, you can provide your purchase method and your country, provide your order number and email address.

William wrote: ↑

Mon Dec 16, 2019 9:07 am

Hi, If so, you can provide your purchase method and your country, provide your order number and email address.

Hi,

I ordered it on November 24, 2019 from Amazon.com Order# 114-7471666-4895421
In the USA,

My email address is: [REDACTED]

Same issue. I have a return error st500 time out.

Hi, You can try uploading the firmware while holding down the reset button.
For specific operations, you can refer to:viewtopic.php?f=20&t=69705

following

I just purchased A20T with the 3D touch and could not upgrade the firmware, seen this post in my quest, thought I had bricked it.
Used Geeetech "toolkit" to get it back to factory and emailed support regarding.
Apparently the A20T 3D touch "upgrade firmware' has been removed until they correct the bugs.
Only half a day of my life gone that i will never get back. lol