Release the boot key immediately once the Research Download Tool displays a blue progress bar showing "Downloading" or "Writing".

Flashing will erase all personal data; ensure you have a backup if possible.

Nokia TA-1174 SPD Flash File Download: Complete Guide and Firmware Update If you own a Nokia 105 (TA-1174)

Browse to your extracted firmware folder and select the .pac file. Wait for the tool to finish loading the packets. If using Miracle Box / Miracle Thunder: Open the software and navigate to the . Select the Write option.

Specialized Spreadtrum Unisoc drivers so your computer can communicate with the phone in download mode.

Before downloading the flash file, prepare your PC.

: Download and extract the firmware and flash tool to your computer.

Before diving into the technical process, it's helpful to understand the device. The Nokia TA-1174 is the model number for the Nokia 105 (2019), a classic feature phone designed for simplicity and extended battery life. It typically features a 1.77-inch color display with a resolution of 128x160, an 800 mAh battery, and physical keys for easy navigation. This device operates on a basic firmware, and when software issues occur, the only way to restore it is often by re-flashing that firmware.

Open the extracted Flash Tool folder and run UpgradeDownload.exe or ResearchDownload.exe as an Administrator.

Nokia TA-1174 SPD Flash File Download: Complete Firmware Repair Guide

: If you forget your custom privacy lock pattern or security PIN, flashing completely wipes the NV data and restores the stock safety default.

: Power off the phone. Hold the boot key (usually the center OK button or the call button) and connect it to the PC via USB cable.