How do I open my Chamberlain garage door opener?

To open your Chamberlain garage door opener, you can use remote control, wall button, MyQ app, or manual emergency release if no power. Using remote control, press button on remote that is programmed to opener, door should open, if remote not working check battery and reprogram using Learn button on motor unit. Using wall button, press wall control button inside garage, door should open, if wall button has motion sensor, press firmly. Using MyQ smartphone app, open MyQ app on phone, select garage door, tap open icon, requires opener with MyQ WiFi like B550, B970. Using keypad outside garage, enter 4-digit PIN and press Enter. If opener has no power, you can manually open door by pulling emergency release cord, red cord with handle hanging from trolley on rail, pull cord to disengage opener, then lift door manually. To close door, press same remote, wall button, or MyQ app button. If door does not open with any method, check power, sensors, and springs, as broken spring prevents opener from lifting door. For Homelink in car, press programmed Homelink button. So you open Chamberlain garage door opener using remote, wall button, MyQ app, or manual release.