Question: how to reprogram garage door keypad for genie?
Answer: In order press keys 3, 5, 7.
Press “Program” key.
Enter your PIN ( from 3 to 8 characters)
Press “Program” key.
Find the Learn Code Button and the LED indicator light on your Genie motor head inside the garage. ... 
Open and enter the PIN, press the Up/Down arrow key and release several times to activate the door.