Blackberry downgrades and upgrades

How to Upgrade or Downgrade a Blackberry OS Device

bbBlackberry is indeed one of the popular brands of smart phone in the world with ever-increasing demands from blackberry lovers across the globe. This tutorial focuses on showing the steps taken to upgrade your blackberry OS (Note: this tutorial is for the blackberry Operating system, e.g. the bold series, touch series and curve series, and not for blackberry10 OS). Below am going to show you the tools and applications needed to successfully downgrade and upgrade your blackberry OS device.

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