diff --git a/boot/config-35DPI.txt b/boot/config-35DPI.txt
index ae5d425..e6152d5 100644
--- a/boot/config-35DPI.txt
+++ b/boot/config-35DPI.txt
@@ -43,9 +43,9 @@ hdmi_force_hotplug=1
 #arm_freq=800
 
 # Uncomment some or all of these to enable the optional hardware interfaces
-dtparam=i2c_arm=on
+dtparam=i2c_arm=off
 #dtparam=i2s=on
-dtparam=spi=on
+dtparam=spi=off
 enable_uart=1
 # Uncomment this to enable the lirc-rpi module
 #dtoverlay=lirc-rpi