Press and hold the designated for your specific device. On most Unisoc devices, this is Volume Down , Volume Up , or both simultaneously.
Release the boot key as soon as the SPD Upgrade Tool detects the device and the progress bar starts moving. Step 7: Finalizing the Process
: Install the Unisoc/Spreadtrum USB drivers on a Windows PC. Load Firmware UpgradeDownload.exe , click the Load Packet (gear icon), and select your device's specific Initiate Flash : Click the Start Downloading (play icon) button. Connection spd upgrade tool r4.0.0001
Follow the on-screen prompts to complete the driver installation, then restart your computer.
: Useful for repairing devices that are stuck on the logo or experiencing system errors. Press and hold the designated for your specific device
: Allows you to flash, upgrade, or reinstall stock firmware to fix software issues like boot loops or system errors.
| Component | Requirement | |-----------|--------------| | | Windows XP, Vista, 7, 8, 10 (32-bit recommended; 64-bit may require compatibility mode) | | CPU Architecture | x86 (32-bit) – no native ARM or x64 drivers | | RAM Type | DDR2, DDR3, some early DDR4 (DDR4 support is limited to 2133/2400 MHz) | | Motherboard Chipset | Intel ICH8, ICH9, ICH10; AMD SB600, SB700, SB710; NVIDIA nForce 6/7 series | | SMBus Access | Requires unsecured SMBus (some modern BIOS versions block direct SMBus access) | Step 7: Finalizing the Process : Install the
is a stable release often bundled with drivers for older Spreadtrum devices, such as the SC series. Technical Workflow
Here is a step-by-step guide detailing how to use this specific tool to flash firmware onto a Spreadtrum/Unisoc device.
Click the button (represented by the Play/Arrow icon). The tool is now in standby mode, waiting for the device to connect. Power off your Spreadtrum/Unisoc smartphone completely.