Glad it worked out for you. Battery replacement should not cause loss of memory or we all would be in trouble! 🤣 Been there, done that with battery polarity in a device.I feel stupid! But if this helps someone else who isnt paying attention, then its worth the frustration I endured. When you assemble your NEW keyfob, battery placement is key!
I had the battery upside down. This cause me so much stress, its like 200-400 to get a keyfob programmed, I was ready to call a locksmith, but I slowed down enough to re think each step and checked a walkthrough on how to switch housings for a keyfob and voilà. I read that the plus side must be on the bottom. Lesson learned.