Select the appropriate .inf file (e.g., choosing the x64 folder for 64-bit systems or x86 for 32-bit systems) and click , then OK .
Backing up and restoring critical network calibration data to resolve "No Service" errors.
To prevent connection drops or "Device Not Recognized" errors, follow these steps to install the driver properly.
Coolsand Driver CM2 allows PC tools (like CM2-compatible boxes/software) to detect and service phones using Coolsand chipsets, enabling flashing, unlocking, and other maintenance tasks. Proper driver installation, correct firmware selection, and careful procedure are essential to avoid damage. coolsand driver cm2
What or Coolsand CPU chip are you working on?
Right-click the Start button and select Device Manager .
Technicians use the Coolsand driver in conjunction with the CM2 tool for the following tasks: Select the appropriate
Guide you on how to check your webcam in the device manager. Let me know which of these would be most helpful! Share public link
If Windows fails, you may need a dedicated driver update tool to locate the specific cm2.sys or cm2cam.inf files. Use a reputable tool like or Driver Booster . Scan for missing drivers. Install the CoolSand USB Camera driver suggested [2]. Method 3: Direct INF File Installation If you possess a .inf driver file from the manufacturer: Open Device Manager -> Update Driver . Select Browse my computer for driver software . Select the folder containing the .inf file and install. Troubleshooting Common CoolSand Driver Issues
| Issue | Likely Cause | Fix/Workaround | |---|---|---| | | Faulty cable, USB port, or device not in service mode | Try a different USB cable, a different PC port, or re-enter the service mode | | “The driver installation failed” (Code 52) | Windows Driver Signature Enforcement blocking the driver | Disable Driver Signature Enforcement and attempt the installation again | | Driver installed but CM2 tool doesn’t connect | Incorrect COM port assignment or conflicting drivers | Check Device Manager for the correct COM port; manually assign a different, lower-numbered COM port and reinstall the driver | | Driver installs but phone won’t flash | Phone is not in download/flash mode | Ensure the phone is turned off or in the proper mode as required by the CM2 tool | | “Unknown Device” persists after installing drivers | Corrupted driver cache or system interference | Uninstall the device and driver from Device Manager; restart the PC; reinstall the driver using the manual method | Coolsand Driver CM2 allows PC tools (like CM2-compatible
The primary hub for official updates is the . As of 2017, Infinity-Box officially released the CM2RDA_Drivers_v1.01 package for the support area. The earlier InfinityBox_update_CM2RDA_Drivers_v1.00.rar is also a common version found across GSM forums.
You are trying to install a 32-bit driver on 64-bit Windows, or vice versa.