How to Replace the Battery in a Langdong Electronic Key?

[DeIsabella]

The steps to replace the battery in a Hyundai Langdong electronic key are as follows: 1. Step One: There is a small button on the key fob; press it to release the lock between the key and the case. 2. Step Two: After unlocking, remove the mechanical key. 3. Step Three: Insert the mechanical key into the gap and twist it to open the key case. 4. Step Four: Pry open the key case and take out the circuit board inside. 5. Step Five: Remove the old battery and replace it with a new one. When installing the new battery, ensure the positive side faces down. 6. Step Six: After replacing the battery, firmly press the separated key parts together to secure the latch, then reinsert the mechanical key. This completes the battery replacement process. Notes for battery replacement: 1. Do not touch both the positive and negative sides of the battery directly with your hands. Sweat on your hands may cause a short circuit, so hold the battery by its sides with two fingers. 2. The battery model for the Hyundai Langdong key is CR2032. Be careful not to use the wrong battery model.