LCD screen purchase:1, LCD screens are fragile items, we will test before delivery to ensure that there are no problems, using a special small foam box packaging for delivery. Generally no problem2, buyers receive the goods, please check the goods in person, before signing, please check whether the goods are damaged, broken and other damage or missing items, items do not exist in the above phenomena and other undesirable phenomena, please refuse to sign and promptly contact our customer service for buyers in the absence of contact with our customer service under the premise of signing for the finished product that is considered the default acceptance of goods, such as problems, please promptly inform, such as then sign please forgive the shop is not responsible.3, the company provides a one-week warranty for non-man-made physical damage, you can rest assured that the purchase. Please do not tear off the warranty label each LCD screen test no problem before we will label the goods received before shipping, otherwise we can not provide after-sales protection.iphone screen installation notes:- 1. receive the goods, be sure to check the appearance of the screen and the line is intact, functional test screen display and touch, to confirm that there is no problem before installation (test touch screen can be moved to each test position of the edit icon, the icon can follow your finger left and right movement, touch normal)- 2. There are two rows of cable clasps, during installation, do not pull the cable excessively hard or twist it excessively to avoid damaging the screen assembly. Pay particular attention to the protection of the cable installation area to avoid accidents.- 3. The LCD assembly must be checked and tested to confirm that there are no problems after installation. Disassembly is risky, installation requires relevant experience and skills, it is best to find professionals to install to avoid damage to the goods by improper operation.- 4. Please conduct a screening test within the day of receipt of the goods, any problems immediately contact us- 5. due to improper operation of man-made damage, the shop does not return service The shop does not bear any losses caused by improper installation.