I have a keyless entry remote for an old car that i just purchased. On the remote, it says python. At first, everything worked fine, the unlock/lock button and the alarm button. After i tried the alarm button, the alarm went off and a i pressed the button again to turn it off. but after i did that, i could not do anything else with the remote. Like unlocking or locking the car. I replaced the batteries with brand new ones, but it still does not work. How would i reset this?