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Can you perhaps expand on "dosn't work" (sic)? With so little detail, it's difficult to understand your circumstances. For instance, exactly what steps do you attempt? Exactly what happens from each step? Are there any error messages? If so, the exact and complete content of those would be most helpful indeed!
Thanks and let us know!
Occam's Razor nearly always applies when troubleshooting technology issues!
If anyone has been helpful to you, please show your appreciation by clicking the button inside of their post. Please click here and read, along with the threads to which it links, for helpful information to guide you as you proceed. I always recommend that you treat your BlackBerry like any other computing device, including using a regular backup schedule...click here for an article with instructions.