As a legacy tool, it is generally available free of charge and often requires no installation.
Based on current security standards and device types, here is a full review of this tool's utility, risks, and modern alternatives. Overview of Nokia Security Code Removal Tool v1.8.4 nokia-security-code-removal-tool-v1-8-4-free-download
Does not require an internet connection, as it relies on a local algorithm. Limitations and Risks As a legacy tool, it is generally available
It typically requires inputting the phone's 15-digit IMEI to generate a corresponding +pw+ code to be typed into the keypad. Limitations and Risks It typically requires inputting the
This tool is ineffective against modern HMD Global Nokia Android smartphones or modern Windows-based Lumia devices.
For many older smartphones, you can turn off the phone, then hold the Volume Down and Power buttons (or Camera + Power on Lumias) to enter recovery mode and wipe the device.