My cellfone is on silent mode I wish to put it on back to make it ring
So... um... change it! The button is probably on the side --- usually the VOLUME button if turned all the way down switches it to silent then vibrate, then with sound...
then go2 your sound settings and crank it up
or there should be a thing on the side ttht you push up
hold the hash key in the bottom right of the keypad
try holdin the pound button!!