Notice Before Installation: (Profesional technician is needed for the installation ), We strongly suggest that please test the item you received before installation, don't remove protective film or tags when testing.The correct test steps are: Clean the flex cable of the screen and the slot of the motherboard before testing; Connect the new screen to the motherboard tightly, please make sure that the battery was charged fully, and please also make sure that your motherboard is not broken; Power on, tested finished ; If the item is tested ok, please install it carefully, and if it can't work, please contact with us immediately, and please don't force it to be installed onto your mobile phone, we will not be responsible for the damage caused by the incorrect installation. Making a return will be a waste of time, so please confirm your model/version and the item type you are looking for, thank you for your attention !