Which Remote Works With LiftMaster 41A5021
You need a LiftMaster or Chamberlain security plus remote. The door opener remote model number is a LiftMaster 971LM.
How Do I Program a Liftmaster 377LM Keypad
Go into your garage and locate your purple smart button which is normally located behind the back light cover. If you do not have a back light cover look for the antenna wire. Now that you have located the purple smart button its time to program your Liftmaster 377LM keypad. Step 1:Push the purple smart…