Using it for a long time, Alhamdulillah. Let me say beforehand, there is no problem with security. There are no marks or scratches on the mobile. Always used protector glass and back poly. Looking just like new as when I bought it. You can check as long as you want, I charge the phone with an authentic Anker charger. Location: Basabo Nandipara, Lal Masjid.