When I first bought my GT-i5801, I could easily access the Android Market and there was no hassle in downloading any applications I want. But then one time it had a virus or something that doesn't allow the phone to open. Then I had it repaired to a Samsung registered repair shop. Then after it was repaired even a single application cannot be downloaded and that the android market can't even be opened.
So what happened? What can I do with this matter?