Chosen Solution
my iPhone 6 only comes on to show me the power cord and iTunes logo above it and that’s it need help
So your screen shows a similar image to that shown when it is dead (the power cable and battery) except the battery is relaced with the iTunes logo, correct? I believe this means that there is no information on your phone and it is looking for a device backup (like the ones made to iCloud or iTunes when the phone is connected to a computer). I would begin by connecting the phone to your computer(or the computer it was most recently connected to) via the charging cable if you haven’t already. It will hopefull begin using a backup automatically. I think there are other ways to fix the issue if that doesn’t work (I seem to recall an alternate method for a similar problem on an iPad) but I’m fairly sure this is the easiest route right now.