The wear-prone keypad smart - key can be replaced easily with the corresponding half of the purchased key here. The accuracy of the new part is surprisingly better or enjoyable! A comparison with a corresponding portion of which had been purchased two years ago on Ebay and significantly more expensive going clearly in favor of this new part. Congratulations! Getting used to, however, is a long delivery time, the results from the transport (along with other parts) of Shenzhen, Guangdong, China. It was definitely worth it, even when taking into account the long lead time of at us 18 days. Thanks!