Blackberry Bold 9900, software issue, keeps rebooting. *

Hello, i have a mint condition Blackberry Bold 9900, the screen is working fine, but has a few cracks on the screen. My son had dropped it thinking it was funny. The phone turns on with the red light then keeps repeating the same thing again and again, i went to the local shop and they mentioned that its a software issue, so please bear that in mind. I was a given a quote of total £30 for it to get fixed, but the phone can still be used even when the cracks are on it, just a software issue. I can post it to you or cash on collection, i do not mind at all. If you have any questions then please call or text on 07516897760