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New Developer
Posts: 6
Registered: ‎04-20-2009
My Device: Not Specified

9900 missing USB Device Drivers

I can not my Bold as a USB Mass storage from Windows7 with BB Desktop 6.0 or 7.0.  The device is reported by Windows Device Manager as "the drivers for this device is missing (Code 28)".  I think this is bogus - since I have explicitly pointed Windows (when I try to "update drivers") at the driver location of "C:\Program Files (x86)\Common Files\Research In Motion\USB Drivers" - but still nothing is found.  


The RIM support article at http://www.blackberry.com/btsc/KB19717 - sounds promising - but when I try the "calfix.exe" program at the bottom it fails with a:  "unknown device".


In searching google/support community - nothing really seems to "fit"...Thanks....

Posts: 2,372
Registered: ‎07-13-2009
My Device: BlackBerry Z10 smartphone

Re: 9900 missing USB Device Drivers

Hello pmcbride,


The following article will provide you with more information regarding the issue you are experiencing with detecting your BlackBerry® Bold™ 9900 smartphone as a Mass Storage device:


The BlackBerry smartphone is not detected as a USB Mass Storage Device when connected to a computerhttp://www.blackberry.com/btsc/KB19717


We hope this helps.


Thank you.



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New Developer
Posts: 6
Registered: ‎04-20-2009
My Device: Not Specified

Re: 9900 missing USB Device Drivers

thanks...but the "calfix" program does not work - it returns an "unknown device" (see orginal post).