Dos and Don'ts 1. Test before installation When testing, do not remove any protective film or tags. Please pay attention to the problem of ectricity. Before attempting any repair, be sure to ground yoursf is an ESD (ectro discharge) strap. This will prevent ectricity from damaging the ectronic components within the phone. Ensure you wear eye protection and use caution not to cut your finger with the gl ers. 2. Simulates testing Screen replacement is very fragile product. We strongly suggest test before installation. Please simulates testing, which means mobile phone apart, Screen Outer Gl Lens connected audio cable and new replacement, power on, test finished. If test OK, please install it. If it can't show, please us at the very first time. And please don't force it to be installed in mobile phone. Wl not be responsible if the mobile phone is damaged during installation.Features 1. Brand new and with top . 2. It is specially designed for Samsung Galaxy A9 (2016) / A 900. 3. This Product is mainly used to replace the old or broken one,thus making your Samsung Galaxy A9 (2016) / A900 as new and complete as before. 4. Each LCD and touch screen have been tested on a working motherboard to ensure perfect working. 5. We have huge stocks and fast divery, can meet large purchasing demands.