1.Checkwhetherthepackingboxisdamagedordampened.Ifyes,contactlocaldealersor INVToffices. 2.Checkthemodelidentifierontheexteriorsurfaceofthepackingboxisconsistentwiththe purchasedmodel.Ifno,contactlocaldealersorINVToffices. 3.Checkwhethertheinteriorsurfaceofpackingboxisimproper,forexample,inwet condition,orwhetherth...