How To Fix Call Of Duty Warzone Dev Error 6635 | NEW 2021

We’ve been receiving reports that some Call Of Duty Warzone players have been experiencing the annoying dev error 6635. In this troubleshooting guide, we’ll explain to you what this error means and show you the dev error 6635 fix.

What does Call Of Duty Warzone Dev Error 6635 mean?

Dev error 6635 is one of common errors that’s been widely reported by Call Of Duty Warzone players ever since the game was released. It’s been known to have increased in frequency though after Call Of Duty Black Ops Cold War was released, when some players started using certain character skins from the new game when playing Warzone.

Dev error 6635 can sometimes be a frustrating error to deal with, especially if you have no idea how to fix it because it disconnects and crashes or forcibly stops the game . You won’t be able to join any battle royale mode unless this error is taken care of first.

Causes of dev error 6635 in Call Of Duty Warzone

There are at least four known causes for Call Of Duty Warzone dev error 6635. 

Character skin glitch.

By far, this has been the most commonly identified reason for the dev error code we’re dealing with here today. Many players have noticed that error code  6635 shows up after suiting up their character with certain skins, weapons, calling card, and other items from Call Of Duty Black Ops Cold War. 

Random game bugs.

For others, dev error 6635 comes and goes even when they’re not using any character skins or items from Call Of Duty Black Ops Cold War. If you are experiencing the same issue, it’s possible that the error code may be isolated to the Call Of Duty Warzone game. 

Some game glitches may develop temporarily when a system is updated, or when there’s new changes to the entire system, like when a PC receives a new major software OS overhaul.

Server issues.

At other times, problems from the server side of things may also affect some game clients, especially in multiplayer mode. To fix dev error 6635 bug, you should also consider checking the status of the server from time to time.

Corrupted game data.

Some dev errors may lead to crashes and, in the case of 6635, prevents one from joining matchmaking because game files are corrupted. Game data corruption may occur when a PC or  console is interrupted during a system or game update, or when a game is in the process of “saving.”

How to fix Call Of Duty Warzone dev error 6635?

For most people, fixing the dev error 6635 is simple while for some, it may take drastic measures like factory reset and a complete game reinstall. 

Below are the solutions that you can try to fix the Call Of Duty Modern Warfare and Warzone dev error 6635.

Fix #1: Use a different character skin or item.

If character skins is your thing, it’s possible that the cause of your problem may be a buggy skin you’re using. To fix dev error 6635, try to choose a different skin, or simply swap the Black Ops skin you’re using to that of a Modern Warfare one and you should be good to go. Anything not related to Black Ops Cold War is good enough.

Fix #2: Restart the game.

If you’re not using any skin from Call Of Duty Black Ops Cold War at all, then the first thing that you want to do is to refresh the game. This can sometimes do the trick for minor, temporary bugs that may have developed in Call Of Duty titles.

Alternatively, you can opt to simply turn your PC or console off to fully refresh the system.

Fix #3: Check for on-going server issues.

Dev error 6635, just like dev error 5573, can be caused by issues from the server side of things. Make sure that you check the Activision server status page.

Fix #4: Delete and reinstall.

If none of the solutions above has helped, you can assume that the game data may be corrupted. Try to delete and install the game again to fix the problem.

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