Click Refurbish and tap the power button on the phone when prompted to initiate the connection.
Since Nokia’s official "Navifirm" servers were taken offline years ago, you must rely on community archives. When searching, look for the Product Code located under your phone's battery (e.g., RM-409). Archive.org: Look for "Nokia Firmware Collections." nokia 5320 image rom rpkg
Place the firmware files in the correct directory (usually C:\Program Files\Nokia\Phoenix\Products\RM-409). Open your flashing tool and select the RM-409 profile. If the phone is dead, enable the "Dead Phone" checkbox. Click Refurbish and tap the power button on
Custom Firmware (CFW): To install a cooked ROM that increases RAM, removes system restrictions, or adds new themes. removes system restrictions