How to Flash Firmware HUAWEI Phone With Spredtrum Chipset.

Flash Firmware Spreadtrum Chipset Huawei Phone. Each cellphone has a different Chipset to support CPU performance. One of the chipsets commonly used on Android phones is Spredtrum. If there is a bootloop issue or the phone is unresponsive, you can fix it by flashing the firmware. Firmware (stock ROMs or flash files) used to flash the Spredtrum device generally in the .pac extension.

To flash the firmware in the .pac extension, you need a special flash tool called the SPD Upgrade tool or Upgrade Download tool.

Prerequisite.

1. Research Download & Upgrade Tool (SPD Flash Tool)
• Get the file from here
2. USB Spreadtrum Device Driver.
• Get the driver from here
3. .Pac Spredtrum Firmware
• Find your Firmware based on your phone model. Here

How to Flash .Pac Firmware on Spreadtrum Phone?

1. Make sure your phone compatible with Spreadtrum chipset.
2. Unzip the firmware package and extract the file that ends in .PAC extension to a different folder. Eg. desktop folder.
3. Power off the phone.
4. Go back to the SPD flash tool, Extract it
5. Then, run Upgradedownload.exe file
6. Click on the Load Packet button (first button, top-left). Navigate to the folder where you previously extracted the PAC firmware and select it.
7. After selecting the firmware, click Start Downloading (the PLAY icon, or third button). In the progress bar, it should display “waiting”. While connecting the phone to the computer via USB cable.
8. When you connect a phone to the USB port, press any button according to the phone brand to Enter Download Mode. You can select the following button.
• Try to Volume down button
• Or, volume Up button.
• or, both of volume down and Up button.
9. Once your phone is successfully connected, flashing will immediately begin. Wait patiently for it to complete and do not interrupt the process to avoid bricking your device.
10. Once flashing .Pac Firmware is completed, it should then display “Passed” in green on the SPD flash tool. 
11. You can click Stop Downloading (stop icon or fourth button) and disconnect your device from the USB port.
12. Now, you have successfully flashed .Pac firmware on your Spreadtrum chipset phone.

For detail instructions, watch the following video.

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