Notice: 1. If you can not close the case,pls check our photos, it will be helpful to you. 2.if you can not find the screw,pls check the small plastic,maybe the screw inside the plastic. Best Replacement Case: You can use your original key blade, no need to cut. Pls check the picture of our listing page, it will show you how to use this case. This item isn't a remote key, it's just a remote key shell OR cover . NO (remote/electronics/ignition or transponder chips) Best replacement for broken or worn keys, or great for an additional key