First of all let me tell you that my blackberry was working flawless since ever i bought it, until 2 weeks ago. Now most of the times my phone has no signal, so i cant make any calls. Then if it has signal it is GSM, sometimes edge, but still the calls are very low quality compared to before, and i can NEVER use BBM. Doesnt matter if my phone has signal or not, nor i can open websites anymore.

I tried swapping the SIM Card, it happens with every single SIM CARD that i put in, and i know they do work because its the SIM CARD of my friends. yet they take my SIM CARD and it works flawless... so i came to the conclusion its my blackberry that its damaged, what could i do? :/

PD: Forgot to mention, when i said flawless i meant with the signaling etc... because it was having keyboard problems since months ago(the kind of problems one get from water or moist damage). But the signal/calls/no internet problem its recent.

I have no money to buy a new BB, so im in urge to fix this one :S.

THANKS!

EDIT: A WEIRD thing is that it actually work fine between 5-8am... the rest of the days it doesnt, specially at night...

So did it get wet? If so, there isn't much you can do about it once you have been using it.

Did it get wet or was it dropped? Since the problem has been going on for months, I doubt there is anything you can do.

It is likely too late, but -> Got Your BlackBerry Wet? - BlackBerryFAQ

It never fell into water, it probably got moist inside.
I find it strange that it works fine early in the morning, but then the rest of the day it is fked up.

WIFI works just fine btw.