Dear, I bought my BV7000 Pro a month ago and yesterday the upper half of the screen stop to work! The smartphone just recognise my touch in a little area on the screen. I can't even unlock the screen using the security pattern. What can I do??? Looking forward to hearing from you soon. Best regards,...

Dear, I bought my BV7000 Pro a month ago and yesterday I noticed that the upper half of the screen stopped to work! I can't even put the pattern to unlock the fone. It's completely useless now. I live in Brazil and what can I do now? I just have this smartphone. Looking forward to hearing from you s...