@lukasmaximus Hey lukas, on which firmware version did you make this run? I am running it on a M5Core Basic and the unit reboots after the .wav was played once and I hit the button again. I have to uncomment: uos.sdconfig(uos.SDMODE_SPI,clk=18,mosi=23,miso=19,cs=4) to avoid another error still I get the: "sd card not mounted" lcd print. Is there any chance to adapt this patch to a newer firmware version? I have also tried it on a Core2, but it doesn't seem to know any of the I2C modes which you defined. would be great to get this to work again and make/update custom uiflow blocks. Thanks in advance for your reply