This guide focuses on installing and using the Spreadtrum (SPD) Drivers , which are essential for connecting mobile devices powered by Unisoc/Spreadtrum chipsets to a computer for flashing firmware, unlocking, or repair tasks. 1. Understanding the SPD Driver The "SPD Driver" (often specifically requested as version 20.0.1.31 or similar latest builds) allows your Windows PC to communicate with Spreadtrum-based devices. Without this, tools like SPD Flash Tool (Research Download) or various "Numerical Boxes" will not recognize your phone. 2. Pre-Installation Steps Disable Driver Signature Enforcement: Modern Windows (10/11) often blocks unsigned drivers. You may need to restart your PC in "Advanced Startup" mode to disable this feature temporarily. Prepare Hardware: Use a high-quality USB cable and ensure your phone's battery is at least 30% charged. 3. Installation Guide To install the SPD drivers correctly: Download: Obtain the driver package (common versions include the "SPD Driver Pack" or "Spreadtrum USB Driver"). Extract: Use a tool like WinRAR or 7-Zip to extract the .zip or .rar folder. Run Setup: Open the folder and find DPInst64.exe (for 64-bit Windows) or DPInst.exe (for 32-bit). Right-click and select "Run as Administrator." Complete Wizard: Follow the on-screen prompts and click "Install" if Windows warns you about the driver publisher. 4. How to Connect the Device Devices with SPD chipsets require a specific "Boot Key" to be detected in flashing mode: For Keypad Phones: Usually, the Center/OK button or the "*" button is the boot key. For Smartphones: Power off the phone, then hold Volume Down (or sometimes Volume Up) while plugging in the USB cable. Verification: Open Device Manager on your PC. When connected correctly, you should see "SPRD U2S Diagnostic COM Port" or "Spreadtrum USB Core" under the "Ports (COM & LPT)" section. 5. Troubleshooting Common Issues Device not recognized Change the USB port (use USB 2.0 if possible) or try a different cable. "Waiting for Device" Ensure the correct boot key is held before and during the connection. Error Code 10/43 Uninstall the driver from Device Manager, restart, and reinstall with Administrator rights.
1. If this is a Memory (RAM) SPD Driver (Most Likely) SPD is an EEPROM on a RAM stick that stores timing, speed, and voltage info. The label 200131 suggests a version date (Jan 31, 2020) and top could refer to a top‑level configuration or a specific hardware revision. What you might be trying to do:
Update or flash SPD on a memory module. Extract SPD data for overclocking/tuning (using tools like Thaiphoon Burner , RWEverything , or i2c-tools under Linux). Fix a corrupted SPD causing boot issues.
Step‑by‑step guide:
Identify your memory module Use CPU‑Z (Windows) → SPD tab, or sudo dmidecode --type memory (Linux). Check if the part number or date matches 200131 .
Backup existing SPD (before any write)
Thaiphoon Burner: Click Read → Save dump as .bin . Linux: i2cdetect -l to find bus, then i2cget / i2cset tools. spd driver 200131 top
Find correct driver/file named spd driver 200131 top This may be a proprietary vendor file. If it’s for a server motherboard (Supermicro, Dell, HPE), check the manufacturer’s driver/firmware download page using the motherboard model number.
Apply the driver (if it’s an OS driver)
Windows: Right‑click .inf → Install. Linux: Place in /lib/firmware/ and reload relevant kernel module (e.g., eeprom or at24 ). This guide focuses on installing and using the
Flash/update SPD (advanced – risk of bricking RAM)
Use SPD‑Write mode in Thaiphoon Burner (requires registered version). Load the 200131_top binary as the new SPD image → Program.