Display is a major problem relating to laptop and another problem is overheating. Sometime USB, Touchpad and sound do not work these relate to BGA problems. BGA is various types - GBM, nVidia etc. - particularly southbridge and northbridge. Does it set right? Yes it is possible by controlling all i/o. It is southbridge and display and remaining southbridge problem. Special modernized machine is required for its solution. This is called BGA Rework Station. We regret to inform you that most of the laptop service centers do not possess BGA Rework Station. Mainly they use hot-air-gun. Do you know what type of problems will crop up for using such hot air gun? It may damage southbridge or nortbridge or both. It may work for a moment but it damages motherboard's track. Ultimately replacement of motherboard is essential Do not rush to cheap service center. Do not spoil your laptop and hard earned money. First gather proper inform ation of the laptop service center where you like to place your costly laptop for repair. Is it a genueine service center having BGA Rework station or not. It is your decision whether you repair your valuable laptop or spoil it. Please visit our laptop's doctor.