Charging overnight = super hot iphone and no charge.....

Try resetting your iPhone by pressing the home and sleep buttons until you see the Apple logo, ignoring the slider. Takes about 5-15 secs of button holding and you won't lose any data or settings.

If still a problem, the next step would be to 1) restore with your backup or 2) restore as new, i.e. without your backup.

Note that you have a 1 year warranty with the iP4. Contact Apple if it comes to that.

how you charged it ? what is the way .
because if you charged it from the printer USB it takes more than 24 hours ..

but from the PC or Lap top is regular ..

What is a "printer USB"?

every one is able to charge from any USB outlet .. but regarding my son's I pod touch ,, when he charging in from lets say HP printer USB ,, it will not gives him the regular timing for recharging ( not like if you charging it from the electricity itself) it will charge but very slow like a truttle 🙂