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Select the flash file you downloaded earlier and follow the on-screen instructions to begin the flashing process.
Download and install the BlackBerry Device Software (BDS) tool on your computer.
Flashing your BlackBerry Classic Q20 requires some technical expertise and caution. Here is a step-by-step guide to help you through the process:
Once the flashing process is complete, restart your device and follow the on-screen instructions to set it up.