If you are experiencing Dev Error 12502 while trying to play multiplayer offline in Call of Duty: Modern Warfare 3, it might be due to corrupted game files. Other possible reasons could be network connectivity issues or outdated game or system software. This guide provides the necessary troubleshooting methods to fix Dev Error 12502 in Modern Warfare 3.
Basic Things to Check Before Troubleshooting
Before performing the troubleshooting techniques, you need to check the below-listed things. If these things were not set right, you could experience Dev Error 12502. So, check and fix the things right to resolve the error on your Call of Duty: Modern Warfare 3 game.
- A stable internet connection is required to play games on your device. Hence, whether your gaming device is receiving proper internet. If not, restart your WiFi router and re-connect your device to WiFi. When the problem continues, switch to a wired internet connection.
- Wrong and complexed in-game settings will let your system crash and face such errors. So, check your in-game settings and reduce the level of certain settings such as effects, texture quality, etc.
- The uncleared cache will disturb the smooth functionality of the game. So, try clearing the cache and temporary files on your device and the game to fix the Dev Error 12502.
Solutions to Overcome Modern Warfare 3 Dev Error 12502
If the internet, in-game settings, and cache files were not the reason for the error Dev 12502, you could try the below-listed workarounds to eradicate the error permanently.
Turn Off On-Demand Texture Streaming
Some MWIII users noted that turning off on-demand texture streaming resolves the multiplayer offline playing issue caused by Dev error 12502. You can turn off this feature from your Call of Duty: Modern Warfare 3 game settings. The step is common for all platforms.
1. Head to the Settings menu on your game and choose Graphics.
2. Click on Quality and scroll down to the Details & Textures section.
3. Turn off the On-Demand Texture Streaming option.
By turning off this feature, your game will stop downloading the textures in the background when you play. You can turn off this feature if the internet connection is unstable on your device to fix other common errors such as high latency, packet burst, etc.
Verify the Integrity of Game Files
As we have mentioned earlier, the corrupted game files are the primary reason for the Dev error 12502 on your Modern Warfare 3 game. This might happen due to the missing files, and a bad update. You can fix this issue by verifying the game files’ integrity and repairing the causes.
However, the steps to verify the integrity of game files will vary from one platform to another.
From Xbox App
1. Open the Xbox app on your device and go to the list of the games that you have installed.
2. Choose Call of Duty and right-click on it.
3. Tap Manage and open the Files tab.
4. Click on the Verify and Repair option.
From Steam
1. Launch your Steam game library and right-click on the Call of Duty game.
2. Tap on Properties and choose Installed Files from the left panel.
3. Choose Verify integrity of game files.
From Battle.net
1. Go to the Battle.net website and open the Call of Duty HQ tab.
2. Tap on the Cog Wheel icon next to the Play button.
3. Choose Scan and Repair and click Begin Scan.
4. Hit Yes on the prompt to begin the process.
Now, your system will quickly scan and verify the integrity of the game files. If there is any problem detected, it will be rectified automatically. Now, check if the dev error on your game has been resolved.
Update the Game
If the game is out-of-date, you may face such errors. Hence, try updating your game to fix the issues. Open the game launcher on your platform and check if there are any updates available for the MW3 game. If there is a new version, update the game to fix the dev error 12502.
You can also update the graphics drivers and your Windows software to prevent such errors in the future.
Restore Licenses
Dev error 12502 has been recorded, especially on the PS4 and PS5. Restoring all your app licenses will help you fix this error.
1. On your PS4 and PS5 gaming console, head to Settings.
2. Select Account Management on your PS4 console, and choose Users and Accounts → Other on your PS5 console.
3. Click on Restore Licenses and choose Restore.
Doing so will reacquire all of your game licenses and help you fix the dev error 12502.
Uninstall and Re-install the Game
If updating the game does not resolve the error, you can uninstall and re-install the MW3 game on your platform. This might help you resolve the Dev Error 12502.
1. Open the game launcher on your platform.
2. Delete the MW3 game from your system.
3. Now, install the game again on your device.
4. Log in to your game and check if the error has been resolved.
Contact Support Team
When the above-mentioned fixes do not work to remove dev error 12502 from your Modern Warfare 3 game, you need the guidance of the Activision support team. Visit the Activision support page and log in to your Activision account to unlock the support options. Contact the support team, report the issue, and get assistance.