Dear buyers, please consult the following before placing an order.1 Before placing an order, first check if your notebook is damaged on the (board) and check if other acceories are damaged together.e sure that the board problem is placing an order. Check if our product image is right for your notebook at the time of purchase. Ok no problem, p an order.2 Before we send the product, each product has entered various functions such as functional test/sound/3D graphics /CPU test/RAM test/battery charge test/network test. 100% to ensure normal work, no quality probl, release3 About Warranty Our products are provided with a 90-day free warranty. If damaged during , you can contact us to send back the warranty.4 If you are satisfied with our products, please give us a five-star rating. Thank you.