IPhone 4 help - issue not turning on?

When I connect my charger to my iPhone, that battery was very low, it does not turn on. The little battery icon comes up, but the very small bar that starts red flashes on and off asking me to connect it to mains I guess. It's a brand new charger. Does anyone know what my problem is? Tried connecting to both mains and computer but neither are working. Held both lock button and home button in but again, not working and just continues flashing. It was dead for a good two hours, think this is maybe the problem?

Added (1). Computer isn't picking it up.

I'm not sure, but try syncing it with iTunes and see if you can system restore it, If not, go to the closest applestore to see what they can do about it, It may result in you getting a New iPhone4 for free.

  • Why is my iPhone 5 turning off and not turning back on? This has happened twice now. My iPhone 5 has turned off in the middle of the night with a full charge and off the charger, and when I try to turn it back on it takes a couple tries. Has anybody experienced this?
  • Issue with windows 10 not recognizing iphone and CF card? Recently my computer has stopped recognizing my CF card and my iphone so that I can get photos off of them. However itunes does seem to work for my iphone and for the CF card I can use my old little card reader and then plug that into the usb port where it seems to work instead. Can anyone help me with what this means and what I need to do to get it working? TIA
  • IPhone 6 screen non responsive. This is not the known issue. I have replaced screen / digitizer and it works normally for an hour or so? Then the screen freezes and if press on the screen sometimes it will work sometimes not same with a reboot… I restored the phone completely wondering if it was a software issue and it's not prob still continues. Connectors are al good yet I still believe it's an hardware issue.
  • IPhone 6 issue Could not activate cellular data network? I have a new iPhone 6, coming from an iPhone 4s. I have AT&T btw. In the top left it shows i have bars, and then the LTE or 4G symbol shows up, but when I try to use safari or anything web-based it says I'm not subscribed to a cellular data service, or "could not activate cellular data network". It works fine on Wi-Fi, but why won't it work on LTE or 4G.