Disable GPIO buttons on LCD4 cape to enable SPI


In order to enable SPI0 and SPI1 on BBB I have been tried disabling default LCD4 cape by modifying uEnv and enable my modified cape dtbo. I also tried to modify am335x-bone-common.dtsi and replace am335x-boneblack.dtb in boot with recompiled one. My custom cape shows up in slots but is disable when I plug LCD4 cape in. The screen is just plain black with two leds on.

Any suggestions?

BBB, image 7/30 Angstrom