Call of Duty Warzone: How to Fix for Error 6635 - Ultimate Guide

If you're one of those wondering how to fix error 6635 in Call of Duty Warzone, you've come to the right place, because we've got this covered for you.

What is error 6635 in Call of Duty Warzone?

This is a bug that came with the arrival of the "Rebirth Island" update to the game and that shares the same problems and behaviors as Dev Error 5573. So here we will tell you how to fix error 6635.

How to fix error 6635 in Call of Duty Warzone?

The first thing you can do to correct the error is to change the Activision account, which seems to have good results on all platforms. That's right, on all platforms! Just make sure not to switch to an account where the error is. 5573.

The above solution is quite reliable and the real results, but unless you don't want to change your Activision account a second time, there are other solutions you can try. Just keep in mind that these appear to be only temporary and may not work.
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A possible solution could be to restart your gaming device, that is to say turn it off for at least 20 seconds and then turn it on again, something pretty basic that could hopefully correct the problem.

Another thing you can do is run the game as administrator, for this right click on the executable of the game and then choose "Run as administrator".

If you are a PS4 or PS5 user, you can rebuild the database, it is a simple process, but it takes time. The first thing you have to do is turn off your console, then press and hold the power button until you hear the audio signal to enter safe mode.

Select the game and then search for 'Rebuild Database'.

As a last option, you can reinstall the game, this process if it takes much longer, but with a bit of luck, it will eliminate this problem.

Now that you know how to fix error 6635 in Call of Duty Warzone, we hope you have been able to correct this problem, remember that the first solution should be enough, but otherwise, you can try the other solutions.