Chosen Solution

My iphone 3gs will not shut-off no mater what i do,i have tried holding the power and off button at the same time nothing.also when charging the screen is dark were you could barely see the apps,but will not change apps when i hit the home button,nothing happens.any suggestions?

Firstly try restoring in itunes, then see if you are still having the same issues. If it’s still behaving strangely after that i’d crack it open and inspect for liquid damage as the faint screen is often a sign of this.