Mya:) 13 Junior Poster in Training

One of my friends gave me his blackberry curve 8520 to update the software.

He went to the repair centre becuase his screen went white and it doesn't want to reboot or anything, and they said it will cost him R350.

I already checked the battery and it's not the battery.

At first I tried the online update but the device wasn't even reconised. So I download the blackberry desktop software.
The update works well until it comes to a part where it says reconnecting to JVM, then it suddenly says it failed to connect to the device.

I've tried everything: reconnecting, watched many videos and read many articles to repair the screen, leaving the phone for days without it turned on , switching batteries , etc but nothing works.

Please help!!