On Windows 10/11, you may need to disable driver signature enforcement to install third-party drivers. How to Install CM2 SPD Drivers on Windows
It allows the PC to intercept the device at its lowest level (BootROM mode) before the Android OS loads. Supported MediaTek vs. Spreadtrum Configurations
(Crucial step for Windows 10 and 11). How to Install the CM2 SPD Driver on Windows
If the device still appears as "Unknown" in , right-click it.
Unlocking Potential: The Ultimate Guide to CM2 SPD Drivers and Tools cm2 spd driver
Always connect your phone and your CM2 dongle directly to the PC. USB hubs split power and signal bandwidth, which causes flashing failures.
Even with correct steps, driver installation can sometimes fail. Here are solutions for frequent problems:
Installing these drivers can be tricky due to Windows security protocols. Follow these steps for a clean installation: 1. Disable Driver Signature Enforcement (Crucial)
Always obtain your drivers from the official Infinity Box support area or trusted mobile repairing repositories. On Windows 10/11, you may need to disable
: Necessary for bypassing FRP, resetting user data, and performing security code resets. Broad Compatibility
The CM2 SPD driver is a set of configuration files that allows a Windows PC to communicate with Spreadtrum/Unisoc chipsets when connected via a USB cable.
Use a known-good USB cable and connect directly to a USB 2.0 port on the back of your computer (if using a desktop).
| Error Code | Description | Solution | |------------|-------------|----------| | | Device cannot start | Conflicting IRQ. Go to BIOS → Disable legacy COM ports or change interrupt assignment. | | Code 28 | Driver not installed | Manually point Device Manager to the .inf file. Ensure the hardware is firmly seated. | | Code 31 | Device not working properly | Reinstall using "Delete driver software" option, then reboot. | | Code 52 | Unsigned driver (Windows 10/11) | Restart in Disable Driver Signature Enforcement mode (Shift + Restart → Troubleshoot → Advanced → Startup Settings → Restart → Press 7). | | BSOD 0x0000007E | System thread exception | The cm2spd.sys file may be corrupted. Replace with a known-good copy from the OEM. | Spreadtrum Configurations (Crucial step for Windows 10 and
Press and hold the phone's hardware boot keys (commonly , Volume Up , or both simultaneously depending on the exact chip specification).
The (Infinity Chinese Miracle 2 Spreadtrum Driver) is an essential component for mobile technicians and enthusiasts working with smartphones powered by Spreadtrum (SPD) / Unisoc chipsets. It facilitates communication between a Spreadtrum-based device and a Windows computer, allowing users to flash firmware, remove FRP locks, backup data, and repair IMEI numbers using the Infinity Box.
: Obtain the latest driver package from the official Infinity-Box support site or a trusted mirror. Extract the ZIP/RAR file to your desktop. Run the Installer : Open the folder and locate the DPInst.exe (or Setup.exe ). Right-click and select Run as Administrator .