i have blackberry storm 9500 its unlocked to o2 but it wont stay on the...

...network does it need to be unlocked? again i have changed the sim and its still doing it i got water spilt over it but got it dried in time and its working there are still a few watermarks on the inside of the screen i have done everything i can to dry it out would water damage cause it to lose network coverage its a new 3g sim that's in it
 
Top