Restoring your BBM data
After setting up BBM 7.0, your BBM contacts, profile, and group memberships are automatically backed up over the wireless network based on your BlackBerry ID.
After updating your BlackBerry Device Software or deleting your BlackBerry smartphone data, you can restore your BBM data by opening BBM 7.0 or later and entering the same BlackBerry ID that you used to set up BBM.
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