I have a Samsung s5. 6 or 8 months ago I started having a problem where the screen would go black and not turn back on for 5 mins or so. When it did the screen woukd flash with green lines then work as normal. I researched and found it was a glitch that could be fixed by turning up the screen brightness. So I don't have that issue any more but my battery drains sooooo quickly now and I'm sick of it. I have to charge it twice a day. I bought a new battery and there is no improvement. How can I remove the glitch so I can go back to better battery life? Thanks!