Important: If your phone shows “SPD” in its service info, double-check the model number. The TA-1174 is MediaTek-based. A “PAC file” is for Unisoc/SPD CPUs. If you force an SPD firmware on a MediaTek phone, you will hard-brick it.
| Feature | SPD .pac (TA-1174 variant) | Mediatek Scatter (Standard) |
|---------|----------------------------|------------------------------|
| Tool | ResearchDownload | SP Flash Tool |
| File format | Single .pac | Multiple .img + scatter.txt |
| Compression | Built-in LZ4 | None |
| Authentication | Digital signature | Checksum only |
| Fault tolerance | Lower (whole PAC fails if 1 partition bad) | Higher (per partition) |
Download and install the Spreadtrum USB Drivers on your computer. This allows the flashing tool to communicate with the phone's chipset.
How to Flash Nokia 105 (TA-1174) SPD Flash File (PAC) Nokia 105 (TA-1174)
is stuck on the logo, experiencing software bugs, or you need to remove a password, flashing the stock firmware is the most effective solution. This model uses the Spreadtrum (SPD) SC6531EFM chipset, which requires specific tools and a flash file. Pre-Flashing Checklist Backup Data: nokia ta-1174 spd flash file pac
Flashing will erase all personal data, including contacts and messages. Battery Level:
Ensure the phone has at least 50% charge to prevent it from turning off mid-process. USB Cable: Use a high-quality micro-USB cable for a stable connection. Required Tools & Files Nokia TA-1174 Flash File: Download the tested firmware (e.g., version 40.00.17.03). SPD USB Drivers:
Essential for your PC to recognize the device in "Boot Mode". Flash Tool: Use a compatible tool like SPD Upgrade Tool Avenger Spreadtrum Module Infinity-Box BEST Step-by-Step Flashing Guide Install Drivers: Download and install the SPD USB Drivers on your computer. Extract Files:
Extract the downloaded firmware and flash tool to your desktop. Load Firmware: Open your flash tool (e.g., SPD Upgrade Tool). "Load Packet" (gear icon) and select the TA-1174 .pac file from your extracted folder. Configure Settings: Ensure the boot block version is set correctly (typically Spreadtrum Boot Block version 1.2 Initiate Flash: button in the tool. your Nokia 105. Important: If your phone shows “SPD” in its
(usually the center OK button or the "call" button) and connect the phone to the PC via USB. Flashing Process:
The tool will show a progress bar. Once finished, you will see a "Passed" or "Finish" message.
Disconnect the USB cable, remove and reinsert the battery, and power on your device. Troubleshooting Common Issues Device Not Detected: Re-install the SPD drivers or try a different USB port. Stuck on Logo after Flash: Perform a hard reset or try a different version of the tested flash file Wrong CPU: Verify your phone is indeed the version, as some older Nokia 105 models use download link for the latest tested version of the TA-1174 firmware?
For TA-1174 (Nokia 2.2), you need:
You can find stock ROMs for TA-1174 on:
Short test points on the motherboard to force BROM mode. Locate the TP (Test Point) near the eMMC chip. Ground the TP to force download mode.
Flashing the correct PAC firmware resolves numerous software-level hardware faults: