1) This is Original LCD Screen + Touch Screen Digitizer Assembly for Samsung Galaxy Win i8550 / i8552. 2) Quality check have been done to ensure the greatest product quality. 3) Repair/Replacing the old, broken, cracked, damaged one. 4) It Makes your device look more refreshing than ever. Advantages: 1) Large stock , fast delivery, can meet large purchasing plan 2) Original, 100% Brand New, top quality. 3) Complete fit and work 4) Supply quality warranty with professional service Before Installation Note : - Tips 1: Test before installation -- When testing ,do not remove any protective film or tags. Please pay attention to the problem of static electricity. -- Before attempting any repair,be sure to ground yourself is an ESD (electro static discharge) strap. This will prevent static electricity from damaging the electronic components within the phone. -- Ensure you wear eye protection and use caution not to cut your finger with the glass splinters. - Tips 2: Simulates testing -- Screen replacement is very fragile product. We strongly suggest test before installation. Please simulates testing, which means mobile phone apart, (motherboard + battery + LCD or screen) connected audio cable and new replacement, power on, test finished. If test OK, please install it. If it can't show, please contact us at the very first time. And please don't force it to be installed in mobile phone. We'll not be responsible if the mobile phone is damaged during installation. - Tips 3: Do not over-bend cable -- Please make sure LCD cable Do not over-bend. Over 90 degrees bent will cause black display.