Connect to PC and open CMD as admin.
fastboot -w Wipes all user data and caches while the device is in Fastboot mode (requires an unlocked bootloader). nokia hard reset tool cmd top
| Error Message | Solution | | :--- | :--- | | adb: command not found | You are not in the correct folder. Use cd C:\Nokia_Reset or run CMD from that folder. | | device not found / < waiting for device> | 1. Reinstall Nokia USB drivers. 2. Try a different USB port (USB 2.0 preferred). 3. Change USB cable. | | fastboot: unknown option -- w | Your fastboot is old. Update Platform Tools to the latest version. | | remote: Command not allowed | Bootloader is locked. You need an official Nokia unlocking code (or use Nokia Care Suite). | | FAILED (status read failed) | USB connection unstable. Use a high-quality cable and disable USB selective suspend in Windows power settings. | Connect to PC and open CMD as admin
After testing 15 different "Nokia repair tools" from XDA Developers and random blogs, the conclusion is clear: Use cd C:\Nokia_Reset or run CMD from that folder
This is a popular free tool often used by repair shops. It is essentially a graphical user interface (GUI) wrapped around CMD commands.