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A: Smart Door Lock. Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Press and hold the setting button for 9 seconds - the blue light flashes, and the red light flashes after 9 seconds, release the hand, and the green light appears, indicating that the factory reset is successful.
When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.