Black Screen

[Huzi02121]

My Display is just plain black i have no clue why it might be because i don't have an SD Card in but i don't know what i should put on it

[VaAndCob]

My Display is just plain black i have no clue why it might be because i don't have an SD Card in but i don't know what i should put on it

Please check if it's the exactly the same CYD model and the backlight does work.

[Huzi02121]

Well i have the same model and the screen worked before i uploaded the code

[VaAndCob]

Well i have the same model and the screen worked before i uploaded the code

Please try web flashing tool here. No compilation needed
You can flash firmware directly to ESP32 here
https://vaandcob.github.io/ESP32-OBD2-Gauge/sketch/firmware/webinstall.html