Please carefully read the numbers on the link: size, touch version, resolution, pins, hertz, applicable machine model, year, inner screen model If you don't know , please contact us with specific model or take a photo of the label on the back of your original screen.Computer screen models are numerous and complex, some internal screen models are compatible with each other , So we recommend that you consult our sellers before you buy.NO instructions are followed ,Please install it Very Professionally ,You need to Pull Off the Power Adapter & Battery Cable when install. Please keep your original parts. Package includes LCD Screen Only (NOT a laptop).Becase Computer replacement screen belongs to the glass fragile goods, Once refund, we as a seller will lose very much.If you are not satisfied with our products and want to return,exchange products or refund , please contact us first and restore the product to its original packaging form .When you find that the computer replacement screen does not work, please do not immediately return products,we are able to provide you with some technical support. Warranty period: 3 months; Please contact us as soon as you have any problems when receiving the Product . Thanks . If you purchased the wrong product,We recommend that you do not unseal the packaging,not to mention damage it,try to restore it to its original packaging form,tell us your computer model,we will give you a full refund .Please don’t leave us any negative/neutral feedback or before contacting us , we always try our best to provide satisfied solution for our customers .If you have any problems , don't hesitate to contact us . All messages will be answered within 72h .