Refurbished kina only use 1 mont and 10 days price negotiable and full authentic products Kono isu nai jotokhon iccah calay dekhben somossa nai Ami aro ektu update korbo tai sell Korte si otherwise all ok for good condition and o jotha keo phone diye disturb korben na only authentic buyer call or this and battery backup 4 hours no heatup issue and cooler is all okay