I'm not really sure.
There may be a simpler fix, but I would use the desktop software to force a clean reinstallation of the device software. Do a full backup manually first, just in case something goes wrong. See the following:
KB11320-How to perform a clean reload of the BlackBerry Device Software using BlackBerry Desktop Software for Windows
By the way, what is this "repair" to which you refer? What was done?
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