My LG KE500 mobile is not coming on because when i was on the internet i try to clear the cache and the phone freezed i then took out the battery and try to put it back on i waited for half of an hour and it did not come on. I went by a phone place and they said the phone had viruses. What should i do

Computers & Internet - Ahead Software - Nero 6.0 (60045) for PC