how to replace laptop motherboard

{"cid":"91208914","title":"IR Phone BGA Rework Station IC Replacement For Motherboard Mobile Rework Station","imgUrl":"https:\/\/img.chinax.com\/nimg\/22\/87\/7c0b4c11217f206141d904a74513-200x200-1.jpg","attrs":{"Price":"$3,200.00\/Sets","Brand Name":"WISDOMSHOW","Place of Origin":"Other Country","Certification":"CE, CE","Packaging Details":"Wooden box","Machine Type":"Welding Manipulator","Applicable Industries":"motherboard repair shops","Warranty":"1 Year","Voltage":"AC 110V\/220V\u00b110% 50\/60Hz","Current":"N","Rated Capacity":"N","Rated Duty Cycle":"N","Dimensions":"L450*W470*H650mm","Usage":"repair motherboard, Repair motherboard IC","Application":"Welding","Total power":"Max 2600W","Power supply":"AC 110V\/220V\u00b110% 50\/60Hz","Heater power":"Upper temp.zone 1200W,second temp.zone 1200W","PCB size":"Max 140*180mm Min5*5mm","Overall dimension":"L450*W470*H650mm","Temperature Interface":"1 pcs","Weight of machine":"30KG","Weight":"30KG","After-sales Service Provided":"Free spare parts, Video technical support, Online support"}}

{"cid":"91188472","title":"Motherboard Laptop Spare Parts Intel i5-6440U 2.6GHz KP60X 0KP60X For Dell Latitude E5470 LA-C832P","imgUrl":"https:\/\/img.chinax.com\/nimg\/04\/81\/e186c88939f07a5b1eec0f62d4fb-200x200-1.jpg","attrs":{"Price":"Discuss Personally","Brand Name":"Dell","Model Number":"Latitude E5470","Minimum Order Quantity":"5","Place of Origin":"China","Payment Terms":"Paypal","Supply Ability":"10 per Months","Condition":"New","DP\/N":"KP60X 0KP60X","Item Weight":"2kg","Warranty":"90 day","Control Covers":"Motherboard Sytem Boards"}}