Garage door opener with separate transmitter programming remote

A separate aftermarket transmitter is used here because the main transmitter from the actual opener is no longer working
Better remote 3 button Linear Megacode MCT-3 - make sure it works for your opener model
https://www.ebay.com/itm/405225084571?_skw=Garage+Door+Remote+for+Linear+Megacode+MCT-3&itmmeta=01JFARY5E2VHV57NY8RFTCFC0E&hash=item5e594c169b:g:G-4AAOSwlWdmvbJS&itmprp=enc%3AAQAJAAABAHoV3kP08IDx%2BKZ9MfhVJKlbl%2BnJbVlezqA2hsizWyM6KerEs1QlVKoBFn%2F1rOw1sm3UiBJZjGjZJJ0kpU0qhUW66b1E6OkUinqi3kngCHeEASO9QVGqKuGxJNZZjpwjmo4XTcxDPqfocOgCcpNnkgZ8Eps1l3wC%2Fw8hq3OhBs6L5eJQR1NO32qfCPS556Z0XpCQpZSY%2B3Wsp5Yhdj%2F9KijhYQXwq5g4gZhR8u0MLJS9Q5kpTsxcX1k5mgo9vBTswpHRYJIKIXdCjRwZIof92L%2BJDrbjDFSC%2FBE8cZWDWrYMSxuOxt4sqP7O3UObW1fgfyUK8L5Qq516s3OMuyzCXDo%3D%7Ctkp%3ABFBMjtf42Ppk