For iphone 4 lcd screen and digitizer assembly

For iphone 4 lcd screen and digitizer assemblyProfessional QC team. Each products are through strict test with inspection machine andtest one by onebefore shippment.Ensure the goods can be used to your cell phone. 1.The day you receiving goods,please don't install the machine at once.You should test them by motherboard machine firstly without tearing off the protectetive film.The problem during the installation orafter,they are beyond guarantee range. If the products you received are defective or faulty, please let us know immediately, and return back to us within 7 days. we can change the defective products for the buyers free of charge. 2.Before shipment we will test one by one to ensure no problem and the package is also very appropriate,using a dedicated small box packing.3.Non-professionals,it is recommended to take the mobile phone to a professional phone repair center to install them.Any damages caused by non-professional installation is out of our responsibility.