How to Flash Infinix Firmware with SPD CPU PAC File: Step-by-Step

This blog offers a detailed guide on flashing Infinix firmware with SPD CPU PAC files. Whether you’re repairing a bricked device, fixing unknown IMEI, dead boot, recovery mode issues, auto-reboot, fastboot mode problems, or virus infections, or simply upgrading software, this step-by-step tutorial covers everything—from tool to the final flash—ensuring your Infinix smartphone runs smoothly.

Learn how to flash Infinix firmware using SPD CPU PAC files with this detailed guide. Follow our step-by-step tutorial to update or repair your Infinix device. Includes tool setup, file preparation, and troubleshooting tips for a smooth flashing process.

What You’ll Need Before Starting

• Infinix SPD CPU PAC File: Download the correct firmware for your specific Infinix model from a trusted source.
• All In One SPD Factory Tool: Included SPD FactoryAll Version
• All In One SPD Research Tool: Included SPD Research Tool All Version
• All In One SPD Upgrade Tool: Included SPD Upgrade Tool All Version
• USB Drivers: Install Spreadtrum USB drivers on your PC for device recognition.
• USB Cable: A reliable cable to connect your Infinix phone to your computer.
• Charged Device: Ensure your phone has at least 50% battery to avoid interruptions.
• Computer: A Windows PC to run the flashing software.

Step-by-Step Guide to Flash Infinix Firmware with SPD CPU PAC File

Step 1: Install SPD USB Drivers

Download and install the Spreadtrum USB drivers on your computer. These drivers ensure your PC detects your Infinix device properly during the flashing process. Restart your PC after installation to apply changes.

Step 2: Get and Set Up the SPD Flash Tool

Search for the latest version of the SPD Flash Tool online (e.g., Research Download Tool or Upgrade Download Tool). Extract the downloaded ZIP file to a folder on your desktop. Launch the tool by double-clicking the executable file.

Step 3: Load the PAC File

• Open the SPD Flash Tool.
• Click the “Load Packet” button (gear icon).
• Browse and select the .pac firmware file specific to your Infinix model.
• Wait for the tool to load the file completely.

Step 4: Prepare Your Infinix Device

• Power off your Infinix phone completely.
• Remove and reinsert the battery (if removable) to ensure it’s fully off.

Step 5: Connect Your Device to the PC

• Launch the SPD Flash Tool.
• Connect your Infinix phone to your PC using the USB cable while holding the Volume Down button (this puts the device in download mode).
• The tool should detect your device and display a green status.

Step 6: Start the Flashing Process

• Click the “Start Downloading” button (play icon) in the SPD Flash Tool.
• The flashing process will begin, and a progress bar will show the status.
• Do not disconnect the phone or interrupt the process.

Step 7: Complete the Flash

• Once the process finishes, a “Passed” or “Download OK” message will appear in green.
• Disconnect your phone and reboot it by pressing the power button.

Troubleshooting Tips

• Device Not Detected: Reinstall USB drivers or try a different USB port/cable.
• Flashing Fails: Verify the PAC file matches your device model or redownload it.
• Phone Won’t Boot: Perform a factory reset from recovery mode after flashing.

Conclusion

Flashing Infinix firmware with an SPD CPU PAC file is an effective way to revive or upgrade your device. By following this guide, you can confidently use the SPD Flash Tool to install firmware without hassle. Always double-check your files and tools to ensure a smooth experience. Happy flashing!

Need Help?
Join our Infinix Support Forum for real-time assistance with firmware flashing.