This guide contains instructions to rotate an upside down touchscreen. If you received a BigTreeTech 4.3" touchscreen display, you will most likely need to follow these instructions:
- Power off your 3d printer.
- Remove the SD card from the Raspberry Pi
- Insert the SD card into your computer
- Manually edit
/boot/config.txtand change:
Try to find config.txt from boot section and open it using your text editor of choice (i.e. Notepad++, VS code, VIM, etc.).
If dtoverlay=vc4-fkms-v3d is found in config.txt, disable it by adding a hash (#) at the beginning of the line:
#dtoverlay=vc4-fkms-v3dThe last step is to copy and paste the following content to the end of file:
display_lcd_rotate=2
dtoverlay=rpi-ft5406,touchscreen-inverted-x=1,touchscreen-inverted-y=1After you are done, save and close the file.
Reinsert the SD card into your Raspberry Pi and reboot it.
¶ Before & After
Before：
After:
