https://yamcode.com/5-lessons-....you-can-learn-from-c
https://www.openlearning.com/u..../mcgregorritter-sm4t
Key Fob Repair: Replacing the Battery The buttons on key fobs could become damaged and stop working after being tossed around in pockets and purses. Replacing the small battery, which most car fobs have in a snap-out case, can fix this issue. If the contacts on your key fob have damaged, a new replacement might not be enough to make it work again. This is a simple fix you can perform at home. Replace the Battery