iPhone 4 will not turn on after being stuck on apple logo?

[Alex]

I have never jailbroken my iPhone so this happened randomly, i was on Facebook and the app froze like it usually does so i closed it and tried to open it back up again, however, this did not seem to work. So i turned it off and attempted to turn the phone back on, it didnt work, but there was a red dot right above the speaker and i didnt know what that was. so after i plugged the phone into a charger it turns on after 10 minutes and stays on the apple logo for about an hour untill it finnaly shuts off. Now it wont respond or turn on or anything

 

[Danielle]

Try and put it in DFU mode maybe? If you don't know how, go to YouTube. It's easy and it worked for me every time.

 

[SeRob]

You can try restoring your phone. This will clear your iPhone of all it's content but this should not be a problem if you have previously backed your phone to iCloud or iTunes. If you don't know how to restore your iPhone you can do a simple google search. Restoring your phone will most likely solve your issue.