How to tell if a garage door opener is compatible?

To tell if a garage door opener remote or accessory is compatible with your existing garage door opener, check several factors including Learn button color, frequency, Security+ technology, and DIP switches. First, locate Learn button on motor unit mounted on ceiling, note its color, yellow indicates Security+ 2.0 tri-band MyQ 2011-present, purple indicates 315 MHz 2006-2014, red/orange indicates 390 MHz 1997-2005, green indicates Billion code 1993-1997, remote must match Learn button color frequency. Second, check Security+ technology, Security+ 2.0 remote not compatible with older Security+ 390 MHz opener unless universal. Third, check if opener uses DIP switches, older openers before rolling code use 8 to 12 DIP switches inside remote and motor unit that must match, if your opener has DIP switches, need DIP switch compatible remote. Fourth, check brand compatibility, Chamberlain, LiftMaster, and Craftsman are made by same parent Chamberlain Group and often compatible if frequency matches, Genie Intellicode remotes work with Genie, universal remotes like Clicker KLIK1U work with most brands. Fifth, check model number on motor unit label, search compatibility chart for remote model. Sixth, check MyQ or Aladdin Connect compatibility for smart features. So compatibility is determined by Learn button color and frequency, technology generation, and brand group.