How to fix Call of Duty error code 4220?

Alton Alexander
By Alton AlexanderUpdated on June 4th, 2022

The cod error code 4220 is a problem that can occur when trying to play the game Call of Duty. This error code is caused by a problem with the way the game is trying to connect to the server. The most common cause of this error code is a firewall or anti-virus program that is blocking the game from connecting to the server. Other causes can include a poor internet connection or a problem with the game files.

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  • cod error code 4220

1. Restart your computer and try again

  1. Restart your computer.
  2. If your computer is running Windows, select " Restart " from the Start menu.
  3. If your computer is running macOS, select " Restart... " from the Apple menu.
  4. Select " Troubleshoot " from the main menu.
  5. Select " Advanced options " from the Troubleshoot menu.
  6. Select " Startup Settings " from the Advanced options menu.
  7. Select " Restart. "
  8. If your computer is running Windows, select " Automatic restart. "
  9. If your computer is running macOS, select " Automatically restart. "

2. Update your drivers

There are several ways to update your drivers, depending on your operating system. For Windows, you can go to the Device Manager, find the device that has the "cod error code" of "4220", right-click on it, and select "Update Driver". For Mac, you can go to the System Preferences, click on "Software Update", and then find the "Update Driver" button. For Linux, you can use the "uname -a" command to find the name of your computer's driver, and then enter that name into a web search engine to find the driver for your operating system.

3. Try running the game in compatibility mode

  1. Launch the game in compatibility mode
  2. If the game does not start, try reinstalling it
  3. If the game still does not start, try locating the game's installation folder
  4. If the game's installation folder is not located in the default location, try locating it using the following steps: a. Click the Start button b. Type %appdata% in the Start Search field c. Locate the game's installation folder and open it
  5. Locate the "settings.ini" file
  6. Locate the "code4220.txt" file
  7. In the "code4220.txt" file, locate the line that reads "debug = false"
  8. Change the "false" to "true"
  9. Save the "code4220.txt" file

4. Verify the integrity of your game files

  1. Access the "file integrity checker" from within your game
  2. Choose the "verify files" option
  3. Select the appropriate game files and click "verify"
  4. If the files are found to be corrupt, you will receive a cod error code and instructions on how to fix them.

5. Delete your game files and reinstall the game

-Locate your game files on your computer. If you can't find them, you can download the game from the PlayStation®Store. -Delete the game files from your computer. -Reinstall the game from the PlayStation®Store. -Enter your PlayStation®Network account information, choose the game you want to install, and install the game. -If you have a copy of the game saved on a disc, insert the disc into your PlayStation®4 system. -Select "Games" from the main menu, and then select "PlayStation®Store" to view the games you have downloaded. Select "Install" to install the game.

6. Contact the game developer for further assistance

  1. Open the game and go to "Options"
  2. Select "Debugging"
  3. Select "Contact Developer"
  4. Enter the game's error code and click "Send Message"
  5. The game developer will reply and help you fix the issue.