Try these steps, one of them will work for you.
1) Pull out the battery for 30 seconds and replace.
2) Go to Options - Security Options - Security Wipe, and wipe the phone.
3) Restore the OS, Connect your computer to desktop manager and click update.
4) Get a new Blackberry Camera Replacement, but be careful; i tried it once and it was very difficult, so if your not sure how to replace the camera, i think the best idea would be to go to a professional technician.
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Thank you martin I will give this a go
crwdns2934271:0crwdnd2934271:0 jamielshaw crwdne2934271:0