If Windows warns about the driver publisher, select
. These chipsets are primarily found in low-cost feature phones (often called "button phones").
Most Coolsand/RDA phones won't be detected unless they are in . For the majority of button phones, the magic trick is to long-press the "0" button
Common chipset model numbers include: Coolsand 1108, 1120, 1123, and (most importantly) and CM2-8810 . coolsand driver cm2
or chipset of the phone you are trying to connect?
before attempting to install older RDA/Coolsand driver packages. step-by-step guide
If Device Manager shows a yellow error icon even after installation, repeat the setup process. Use the Linux Gadget USB-to-serial (UFCOM) profile to force proper initialization. AI responses may include mistakes. Learn more Share public link If Windows warns about the driver publisher, select
Clean the phone’s charging port with isopropyl alcohol, switch to a USB 2.0 port on the back of the PC motherboard, and use a shorter cable. 2. Connection Loops or Immediate Disconnects Cause: The battery is flat or driver conflicts exist.
Connect your phone (often by holding a "boot key" like the ) to trigger recognition.
Locate the unknown device marked with a yellow exclamation point (often labeled as UFCOM or Linux Gadget USB-to-serial ). Right-click the device and choose . Select Browse my computer for drivers . For the majority of button phones, the magic
Bad USB cable, dirty charging port, or USB 3.0 incompatibility.
The is an essential tool for any mobile technician working with budget-friendly feature phones. By properly installing these drivers, you eliminate connectivity issues, allowing you to use powerful tools like InfinityBox CM2 for unlocking, flashing, and repairing devices successfully.