... motherboard, and in a position to supply laptop LCD, laptop keyboard, battery, and adapter. We have our own professional engineer team ... turps, dust, tin soldering or other dirty mark on board.2. Check whether lack of electronic insulation gummed paper.3. Check ... of LCD display , Two memory, DVD driver, Network connection, Voice, Mouse, Keyboard, Dial, USB, SD connector, PC, 3.3V COMS battery, Battery ...