https://play.google.com/store/apps/details?id=com.application.onead&hl=en Your friend has invited you to try OneAD app. OneAD is Refer and Earn + Shop and Save mobile app. Install this free app become a member and earn up to 2.5 Lakh Rs per month. Your referral code for registration is reffer code -"M1EQFP"
Thank you for being with Samsung and sharing your concern. we would request you to visit the nearest service center which you can find at the given link http://www.samsung.com/in/support/servicelocation/. Be sure to hit ♡ when you find an answer that works for you.