3.3.
Modify Display Orientation
（
1
）
Open configuration file – config.txt and input
sudo nano /boot/config.txt
（
2
）
Find ”dtoverlay=tft35a” in config.txt and add rotate parameter in below formats:
dtoverlay=tft35a:rotate=value
When value is 0, it means to rotate 0 degree, in this case screen is vertical display
When value is 90, it means to rotate 90 degree, in this case screen is horizontal
display
When value is 180, it means to rotate 180 degree, in this case screen is vertical
display
When value is 270, it means to rotate 270 degree, in this case screen is horizontal
display
（
3
）
Press Ctrl + X and choose Y. Save and exit and restart you will see changes
accordingly to your modification.
FAQ
：
After I changed the display orientation, the touch screen function is not working,
what should I do?
Solution: Please refer Chapter 3.0 and calibrate your screen again.
