Electronic lock

Approach to clearing old codes: Long press the two (Lock & Unlock) buttons to clear old codes(The LED indicator will flash once, which is the sign of cleared state). Approach to duplicating: Place them side by side(close possible), then press both one key of your old remote and the to-be-matched key this remote simultaneously. The LED indicator will flash once. Learning process done. Other keys accordingly. Approach to recovering: Press the Start and Mute buttons for about 2 seconds till the light is and flicker. (Or you can delete the codes and repeat the learning process.） Approach to test if the old codes are totally cleared: Press any key the remote duplicator, if the LED indicator blinks instead of being, codes cleared. Otherwise, undone. Humanized design: Button slide cover to protect buttons from accidental unplanned operation. Application: Vehicle central locking systems, garage doors, electronic doors, car sunroofs, heating systems, etc.