BIGTREETECH-TouchScreenFirmware VS BIQU-B1

I've never seen the 3dwork site before, thanks for that! Look at the settings/config options here and see if they map into that site. Also make sure to check if you need "serial_port_2 1". That was a key for me, everything else was configured correctly but the motherboard wasn't talking to the screen.

When I go here https://github.com/bigtreetech/BIGTREETECH-TouchScreenFirmware The wirring is gone all of the sudden for some random reason or i am blind

firmware from github

You can't do much to change the menu contents and almost nothing to change the menu structure in config.ini. That's why I wrote you'd have to edit the firmware source files, such as the Menu files under https://github.com/bigtreetech/BIGTREETECH-TouchScreenFirmware/tree/master/TFT/src

Thanks for the ideas. According to the readme, the TFT35 v2.0 only has the RS232 connection, not the EXP connections. It's bolted into my case, I haven't unbolted it yet to visually check for myself. And, according to the readme, the TFT35 v2.0 only supports touchscreen mode, not Marlin mode.

Per this site, to get full functionality you need to:

https://github.com/bigtreetech/BIGTREETECH-TouchScreenFirmware/commit/35d9ed2b04722894ec2123fede4b21a21a9c4c2c.

link to bug report: https://github.com/bigtreetech/BIGTREETECH-TouchScreenFirmware/issues/2681

Should be able to download everything you need from the GitHub page. https://github.com/bigtreetech/BIQU-B1

For skr 2 you need to look at the numbers on the chip. There is a STM32f407 and STM32F429. These are the current official BIQU B1 firmware. https://github.com/bigtreetech/BIQU-B1/tree/master/Firmware/2022-03-27 select the one that matches the chip number. I recommend doing the screen too. Look at the screen chip too since there is a chance of it being a GD version instead of the STM. The chip shortage problem has made it so they need to use equivalent alternatives so it's important to choose the correct firmware.

I've updated my biqu b1 to the latest version on githup: https://github.com/bigtreetech/BIQU-B1/tree/master/Firmware

Looks like you will have to reflash the firmware on the screen. This link Here should provide you with the correct firmware (pending its the newest) then put it on an SD card and throw that into the SD slot on the front of the machine.... DO NOT PUT THE SD CARD INTO THE REAR SD CARD READER!!!!!!!

Firmware: Marlin 2.0.6 (Stock B1 Firmware)

Hmm, not the experience I had but I can see how that's not too helpful. Did you ever get it sorted out? It's pretty straight forward if you still need help. It's just download the newest one for your motherboard from their GitHub repositorie put it on an SD, insert the SD into the motherboard sd slot. Turn on the printer. It updates in couple seconds without a visual confirmation. You can confirm the update by looking at the SD on a PC and see the firmware.bin changed to firmware.cur.

for the probe not finishing it sounds like a firmware issue and you will need to update and fix that before you get full functionality out of that you can find the firmware on https://github.com/bigtreetech/BIQU-B1