Realme C21Y (RMX3263, RMX3261) Mobile USB Driver

If you're want to connect your Realme C21Y (RMX3263) to your Windows 7, 10 or 11 32bit and 64bit to computer for doing like transferring files, debugging applications, Flash Stock rom (Firmware), or rooting your device, you'll need the right USB drivers. This guide iterance you through the process step-by-step to ensure a smooth installation.

Realme C21Y (RMX3263) CPU Type : Unisoc T610
RMX3263 CPU Type : Unisoc T610

RMX3261 CPU Type : Unisoc T610

Step 1: Need the Realme C21Y (RMX3263) Phone's USB Driver

Download the suitable USB driver for your Realme C21Y (RMX3263) Phone. Samsung provides specific drivers for their devices.

For Realme C21Y (RMX3263) Devices:

You can get from this link and download the Realme C21Y (RMX3263) USB Driver to your computer.

Realme System Upgrade Tool | Mirror

SPD (Spreadtrum) USB Driver (77XX) | SPD USB Driver

Step 2: Extract the USB Driver Files

You'll need to extract the Zip file of the downloaded file. Choose a path on your computer that you can easily get later.

Step 3: Open Device Manager

To open Device Manager:

Press Windows + X on your keyboard.
Select Device Manager from the menu that appears. This Device Manager tool manage your all the hardware connected to computer or laptop.

Step 4: Connect Your Device:

Connect your Realme C21Y (RMX3263) Phone with your Computer or Laptop using a USB cable.

Step 5 may not be required in the latest Windows versions because the USB driver might already be installed. If the driver is not showing, connect your computer to the Internet and Windows will automatically install it. If this process does not work, then follow step 5

Step 5: Install the USB Driver

In Device Manager, check your Realme C21Y (RMX3263). It could be found in the Other devices section, Portable Devices section, or Universal Serial Bus controllers section. Sometimes, there yellow warning icon which means there is a problem with the driver.
Update Driver using Right-click on your device.
Choose Path in my computer for driver software.
Click on Browse and handling to the folder where you extracted the driver Zip files.
Select the folder and click Next. Windows will search for and install the driver.

Step 6: Verify the Installation

To confirm the driver installation:

Your device should now be listed under Android Device or Samsung ADB Interface in Device Manager without a yellow warning icon.
Open a Command Prompt window and type adb devices. If your device is listed, the installation was successful.

Troubleshooting Steps

If Windows can't install the USB driver, then you can try turning off driver signature enforcement using below steps:

Go to Settings ➜ Update & Security ➜ Recovery.
Under Advanced startup option, click Restart now.
After Restart your PC then go to Troubleshoot ➜ Advanced options ➜ Startup Settings ➜ Restart.
Press F7 to disable driver signature enforcement.

Follow again Installation steps After Restart your computer.

How to Install USB Driver in Windows 7,10 and 11 32bit - 64bit