I talked to a friend and he told me, like a hard drive, delete just removes the pointers, not the data. He said it takes several overwrites before the data is gone. He said he did not know how to do it for a blackberry. My older son is the computor whiz. But he and his wife are expecting delivery of our first grandchild this week or next. Could you ask your associate for more details so I can ask my oldest son later to do it for me. My youngest son is no more able on the computor than I am.
That is why he does not have it backed up. I got my wife a newer cell phone followed by one for my mother in law, then me. You would laugh if you saw us retriving our voice mail.