Chosen Solution

my phone started to flicker for no reason while I noticed the battery was red, then it just went off, since then nothing has made the phone turn on, I have left it charging for a while and sometimes I do get the red light reappear with the charging symbol but once that shows after a short while it goes away again, I have tried the calibration and all sort of combinations., I don’t know what else to do. any ideas? Update (08/14/2017) now i get a blue screen after the logo and then it gos black and gos back to charge…..

Did you try a different cable? That could be flaking out and not charging your phone properly. You may need to do a hard reset on your phone. Is the battery life worn down on it? May need a new battery. Lastly, was it exposed to any moisture? Hope that helps