SPD Upgrade Tool (SpreadTrum Flash Tool) is a windows application that allows you to flash or install .pac firmware (ROM) on devices running on Spreadtrum/Unisoc Chipset.
Here on this page, we have shared the latest version of the SPD Upgrade tool and the previous versions.
It comes as a portable application, so you don’t have to install it on your computer to use it. Instead, download and extract the tool on your computer and open the UpgradeDownload.exe file to launch the Application.
It helps you to install or Flash Stock Firmware on Spreadtrum/Unisoc Powered Smartphone, Feature Phone, and Tablets. All you need to have the correct .pac firmware of your Spreadtrum/Unisoc Device > Install the SPD Driver > Launch the Tool > Click on Load Packet Button > Locate the .pac file from the firmware folder > Click on Start Downloading Button to begin the Flashing.
Support Spreadtrum Chipset:
It comes in support of devices running on Spreadtrum/Unisoc Chipset. Once you have installed the Spreadtrum Drivers on the computer, the Upgrade Tool can easily detect the connected device and get ready to flash the firmware on the device.
Support .pac and .p5c Format:
It supports the flashing of .pac and .p5c based Stock Firmware on the Spreadtrum/Unisoc Devices. Therefore, you can easily find the .pac file in the Stock Firmware of your Spreadtrum/Unisoc Smartphone, Feature Phone, and Tablets.
Download SPD Upgrade tool (SpreadTrum)
Upgrade Tool is compatible with all versions of Windows OS, including Windows XP to Windows 11 (x32 or x64 bit). If in case you were looking for the latest version of the Upgrade Tool, then use the following links to get it on your computer:
R26.21.2801: SPD_Upgrade_Tool_R26.21.2801.zip – Latest
[*] How to Use: If you want to learn to use the Upgrade Tool to Flash Stock firmware then head over to How to use SPD Upgrade Tool page.
[*] Bin Packet load Error: If you are facing Bin Packet Error while loading the .pac Firmware, then we recommend you to try with this version of SPD Upgrade Tool.
[*] SPD USB Driver: If you are looking for the original SPD USB Driver, then head over to the SPD Driver page.
[*] How to Write or Fix IMEI: After flashing (installing) the stock firmware on Spreadtrum/Unisoc Device, you may need to Write or Fix the IMEI aswell. To fix the IMEI issue, use WriteIMEI or Read&Write Tool.
[*] Credits: SPD Factory Tool is created and distributed by Unisoc Communications Inc. So, full credit goes to them for sharing the Application for free.