If you only need to reset the device without a full flash, you can use these built-in codes: Download SP Flash Tool for Nokia phones
Flashing your phone will erase all data. Proceed at your own risk. Make sure your battery is at least 50% charged. Nokia 105 Ta 1304 Flash File Download
| Problem | Solution | | :--- | :--- | | Tool not detecting phone | Reinstall USB drivers. Try a different USB port (USB 2.0 preferred). | | Error: "Device not found" | Ensure phone is powered OFF before connecting. | | Flashing stops at 50% | Check your USB cable (use original or high-quality data cable). | If you only need to reset the device
Connect the phone to the PC via a micro-USB cable. You may need to hold a "boot key" (often the center or call button) while connecting. Completion | Problem | Solution | | :--- |
Power off the phone. Hold the specific boot key (often the center "OK" or "Call" button) and connect it to your PC via a USB-C cable.