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BlackBerry® OS Smartphones

Elite II
Posts: 7,974
Registered: ‎06-01-2012
My Device: Curve
My Carrier: BSNL

Re: For some reasons my BB Flash Light stopped working

Hi amitmok



You can try a Clean OS reload which might take few minutes.For that go through this Knowledge Base :


KB03621 : How to Reload BlackBerry Device Software and application using BlackBerry Desktop Software


Or if you want to try another OS pack from your Carrier or any other you can try those steps :


1.Locate your Carrier and Download the OS you desire from here  Carriers

  • (make sure you are downloading for the same model as you have )


2. Now Double the file that you Downloaded to Install it on your PC


3. Download and install the latest BlackBerry desktop software from here BlackBerry desktop software

  • Then using desktop software perform your full backup of your device.


4.Search your C: drive for Vendor.xml and delete them, there may be two OR three VENDOR .XML files ( On your Pc change your folders option to show hidden files/folders ) :

  • C:\Program Files (x86)\Common Files\Research In Motion\AppLoader
  • C:\Users\Windows UserName\AppData\Roaming\Research In Motion\BlackBerry\Loader XML


5. Go to C:\Program Files\Common Files\Research In Motion\AppLoader. (For 64-bit Vista or Windows 7, the path       will be C: > Program Files x86 > Common Files > Research In Motion > AppLoader) double click Loader.exe


      Upgrade will continue then After Installation of New OS restore your backup from BlackBerry desktop




Good luck


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