Need help with the 3.5" TFT Touch Screen in Raspberry Pi 4 : Screen is white

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Since I don’t know in what state your system currently is, I recommend to start with a fresh Volumio installation. Make sure to wait some minutes after the first boot of Volumio so the data partition can fully expand. Otherwise you will not be able to install the Touch Display plugin because of too less space.

Then try the following:

  1. Install the Touch Display plugin.

  2. Execute

    sudo apt-get -y install xserver-xorg-video-fbturbo

    sudo apt-get -y install xserver-xorg-input-evdev

    sudo cp /usr/share/X11/xorg.conf.d/10-evdev.conf /usr/share/X11/xorg.conf.d/45-evdev.conf

    sudo curl -L https://github.com/goodtft/LCD-show/raw/master/usr/tft35a-overlay.dtb -o /boot/overlays/tft35a.dtbo

    sudo curl -L https://raw.githubusercontent.com/goodtft/LCD-show/master/usr/99-calibration.conf-35-90 -o /etc/X11/xorg.conf.d/99-calibration.conf

    sudo curl -L https://raw.githubusercontent.com/goodtft/LCD-show/master/usr/99-fbturbo.conf -o /usr/share/X11/xorg.conf.d/99-fbturbo.conf

    cat >> /boot/userconfig.txt <<EOL

dtparam=spi=on
dtoverlay=tft35a
EOL

  3. Reboot.

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