Regarding the "Python/Overhead/Codeless" garage door opener. Had a security system in home discontinued. Thereafter, the remote would no longer work. The only way to open/close the garage door is through the remote on the garage wall. Replaced remote with a brand new battery. Nothing. Aimed the (hand-held) remote at the sensor box on the ceiling and light blinked and stopped.Re-tried the (hand-held) remote,and nothing. Any suggestions greatly welcome! thanks!