Thank you for your question!
Please try to do a soft reset on the phone by powering it off and removing the battery then placing it back again after a few minutes to reboot the handset.
Also, try here for power saving tips:http://www.samsung.com/us/support/S...
If this does not work, please just write us again on this forum or you can also chat live with a support agent by following the link below and clicking on Mobile Phones under Live Chat Support, or feel free to ask us on Twitter @GalaxySsupport or @samsungsupport for speedy responses in the U.S.
Thanks and have a great day!
answered 2 years, 6 months ago