diff --git a/NOTES/LCD.HOWTO b/NOTES/LCD.HOWTO
index 281e168..d79548f 100644
--- a/NOTES/LCD.HOWTO
+++ b/NOTES/LCD.HOWTO
@@ -1,5 +1,9 @@
 From: https://learn.adafruit.com/adafruit-16x2-character-lcd-plus-keypad-for-raspberry-pi/usage
 
+NOTE: if i2c does not appear to work,
+edit /boot/config.txt and add: dtparam=i2c1=on
+(cf. http://raspberrypi.stackexchange.com/questions/27073/firmware-3-18-x-breaks-i2c-spi-audio-lirc-1-wire-e-g-dev-i2c-1-no-such-f)
+
 * edit /etc/modules, add i2c-bcm2708 and i2c-dev
 * sudo apt-get install i2c-tools python-smbus
 * confirm that the lcd was detected by running: