: Install the latest official software packages.

: Open the folder and run the Flash_tool.exe as an administrator.

: Download the correct Stock ROM (Flash File) for your specific Nokia model (e.g., RM-xxx code). How to Use Nokia Flash Tool 1420

Before starting, ensure you have the following ready to prevent "bricking" your device:

: Get the SP Flash Tool v5.1420 from a reliable source like SourceForge and extract it to your PC.

: Click on the "Choose" button next to Scatter-loading File . Browse to your downloaded firmware folder and select the .txt scatter file. Configure Flashing : For a standard update, select Firmware Upgrade .