Go to > Advanced options > Startup Settings > Restart .
A: Rarely. Most CM2 modules were designed exclusively for Windows. However, some reverse-engineered cm2spd Linux kernel modules exist for Ubuntu 14.04 (legacy). Check libusb projects on GitHub.
Use high-quality USB 2.0 cables and avoid plugging the device into USB 3.0 or USB Type-C hub ports, which can cause connection drops.
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.
A: Yes. Copy C:\Windows\System32\drivers\cm2spd.sys and the corresponding .inf from C:\Windows\INF . Manually reinstall via Device Manager. cm2 spd driver
Download the verified CM2 SPD Driver package (typically bundled within the official Infinity-Box support area or standard driver repositories). Extract the ZIP/RAR archive using WinRAR or 7-Zip.
Are you a seized unit or assembling a new one?
Look for a yellow exclamation mark named SPRD U2S Diag , Spreadtrum COM , or Unknown Device . Right-click the device and choose . Select Browse my computer for drivers .
Newer versions of Windows restrict the installation of drivers without official Microsoft signatures. To prevent installation failures: Go to > Advanced options > Startup Settings > Restart
It allows the software to access the phone's bootloader or BootROM mode immediately when the device is powered off and connected via USB.
Open the extracted folder and find the driver setup file (usually named DPInst.exe or CM2_SPD_Driver_Setup.exe ). Right-click the file and select .
(or sometimes both volume buttons) while connecting the USB cable to trigger the detection mode. Battery Power
It is highly recommended to restart your PC to ensure the drivers load properly. Using the CM2 SPD Module to Flash a Device The CM2 SPD driver is a set of
Because many of these drivers are not officially signed by Microsoft, Windows 10 and Windows 11 may block their installation.
Right-click the application and select . Step 3: Complete the Setup Wizard Click Next on the device driver installation wizard.
The software will display "[phone detected]" and start the flashing process. Troubleshooting Common CM2 SPD Driver Issues