How do I sync the keyless pad garage door opener to the main garage door opener?
I mistakenly gave someone my garage door opener that didn't return it. I had a male friend come over and "change the code" including my car opener and gave me a universial which he also programmed.
I came to realize my code for my keyless pad outside doesn't work (since he changed the code... ). I tried to do it today and ended up clearing all the remotes out and making a big mess. The keyless pad wasn't lighting up even, so I changed the 9V battery... it's still not lighting up. Any advice or directions to a manuel for a LiftMaster (about 8 yrs old) WhisperDrive... on the keyless pad, it says Security+... I couldn't find a company name on it other than that.
Please help!