Tecno Camon 15 CD7 Lcd liquid crystal display (LCD) that makes use of thin technology in order to improve qualities such as contrast and addressability. the lcd screen is tested for operation befor installation . Please don’t install it before testing ( just link the lcd screen to the motherboard for tsting ) professional qc team and tested before shipment and 100% work ing normally it is used to replace your broken non working and lcd screen with a new one and make your lcd screen work normally