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I would suppose that RIM can perhaps do that at the factory, but no one here (all volunteers, not "insiders") can really know for sure. There have been infrequent reports about "cloned" BBs, which would imply that it perhaps can be done. Of course, doing so is something illicit, and as such wouldn't be a sanctioned discussion on this RIM-sponsored site.
Occam's Razor nearly always applies when troubleshooting technology issues!
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