The (Nokia 105 4G) uses a Spreadtrum/Unisoc chipset, requiring a PAC file and the SPD Upgrade Tool (ResearchDownload) for firmware flashing. Flashing a "fixed" PAC file is typically done to resolve issues like the device being stuck on the "Nokia" logo (hang on logo) or to fix software bugs. Prerequisites for Flashing

: Maintain at least 60% battery charge to prevent the device from powering off during the critical flashing process. 3. Flashing Process Follow these steps to restore your Nokia TA-1304: Install Drivers : Run the SPD driver setup on your PC.

Applications stop working or the system is slow.

: Ensure the phone has at least 50% charge to prevent it from turning off mid-process, which can "brick" the device.

: The phone powers on, but the screen remains entirely blank due to a corrupted display driver.