i have a galaxy note edge..well the phone screen constantly goes black and a blue light turns on at the top of the phone, plus it constantly turns off and on. it is not reliable to even use but I would love to fix it so I can use it..i have tried 100 different methods off of youtube and not one of them worked. seems like no matter what I do the screen always ends up going black, could it be a bad battery...or is the phone toast? ....can anyone give me some pointers or advice?