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BlackBerry® OS Smartphones

New Member
Posts: 1
Registered: ‎12-29-2010
My Device: Not Specified

8520 update

hey, i updated my blackberry 8520 to v5 software. i don't like this software and find it slow. how can i change it back to the software mine originally came with when i originally had it?

thanks Smiley Happy

Elite I
Posts: 6,657
Registered: ‎01-14-2009
My Device: BlackBerry Z10
My Carrier: Telus

Re: 8520 update

Hi there, you may be able to do this within the BlackBerry Desktop Software (same area where you'd update, but where you're given a choice as to what OS to install, go with the previous one (OS 4.6).


If that doesn't work, go to Control Panel > Programs and Features and remove any BlackBerry Device software that's there (leave the Desktop Software intact), then follow the steps located here:




The only thing you want to do in this case is to select the BlackBerry device software version that is a 4.6 OS when you go to download it from your carrier's website.


I hope that helps

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