led indicator

Thanks for being with Samsung and sharing your concern. We would like to inform you that LED notification lights have three main colours namely Red, Green and Blue. Red will blink when device is put on charge or low on battery. Green will blink when the device is fully charged and Blue would blink when the device receives any notification. Be sure to hit ♡ when you find an answer that works for you.
For Further assistance, you can get in touch with us via Live Chat option by following- http://livechat.support.samsung.com/Customer_new/IN. You can also connect us via Samsung Members web community by following mentioned url-https://community.samsungmembers.com/en_IN#/