YYWireless Online CSC Changer

Welcome to YYWireless Online CSC Changer. This tool allows you to convert to another carrier CSC, unbrand your device, or fix update issues.
Note: This tool only works with Samsung devices and requires a Windows computer.

Getting Started

  1. Install Samsung Mobile Drivers

    Download and install the Samsung mobile drivers from here

    If your device is on the welcome screen, proceed to step 3.

  2. Prepare Your Device

    Ensure:

    • There is no password or active lock screen
    • Auto Blocker is disabled. Checkout how to disable auto blocker here
  3. Connect the Device
    • Plug the device into your computer.
    • Press Connect Phone button on the tool.
  4. Pair the Device

    After pressing the connect phone button

    Your browser will prompt you to:

    • Select a USB device
    • Select your device from the options listed in the popup in the top left-hand corner
  5. Device Information

    The tool will automatically read:

    • Your current CSC
    • Your original CSC

Fixing Update Issues

If your device is not receiving updates:

  1. Convert the device back to the original CSC.
  2. Once converted, you should be able to check for and install updates normally.

Unbranding a Device

To remove carrier branding:

  1. Select the Unbrand option in the tool.
  2. Follow the on-screen instructions.

Troubleshooting

If you encounter failures, errors, or the tool is not working:

  1. Restart the device
  2. Reconnect it to the computer
  3. Try the process again

If issues persist, repeat the steps above and ensure the device meets all preparation requirements.


Device Connection

Not connected

Original CSC:

Current CSC: