Modern Warfare 3 dev error 5433 screen
Screenshot via X @_C2AG

How to fix dev error 5433 in MW3 Season 3

With each Modern Warfare 3 season update, players experience technical issues. While many errors get fixed quickly, some tend to return often. Here is how to fix dev error 5433 in MW3 Season 3.

Recommended Videos

Dev error 5433 in Modern Warfare 3 solutions

There are several potential fixes for MW3 dev error 5433, especially for issues in Multiplayer and Zombie mode. I recommend you start with the easiest and fastest solutions before you decide to pull the plug and reinstall the game.

  • Reboot Modern Warfare 3 - While multiple players complained about error 5433, not all experienced the same level of issues. Hence, a simple restart may solve a problem.
  • Clear the cache on your device - Sometimes, files from the pre-update version of the game can cause issues. Clearing cache may help.
  • Check for the latest patch/Update the game - Even if you updated the game not long ago, try to update it again, as the developer might have issued a quick fix.
  • Reinstall MW3 - If the above solutions don't work out, uninstall the game, reboot your system, and download the latest version of Modern Warfare 3. This takes time as the download size is big, but it’s still a good option when needed.

Related: Top 5 Meta Loadouts for MW3 Season 3

How to contact Modern Warfare 3 support

The last thing you can do to solve dev error 5433 in MW3 is to contact the official Call of Duty: Modern Warfare 3 support. But before you write a ticket, check out Warzone Trello board dedicated to technical issues and patch notes. Another good source of information is the X/Twitter account @CallofDuty, where you can find out more about any bugs causing issues.

For more information on MW3, check out How to fix the MW3 black screen error on Pro Game Guides.


Pro Game Guides is supported by our audience. When you purchase through links on our site, we may earn a small affiliate commission. Learn more
related content
Read Article Call of Duty MW3 and Warzone Season 4 Countdown
Call of Duty Warzone character aiming at opponent
Read Article Kar98k teased for return to Warzone in Season 4
Kar98k sniper rifle in Warzone 1
Read Article CoD campaigns aren’t what they used to be and new players are missing out
Captain Price ordering Ghost in an alleyway in Modern Warfare 3
Read Article Call of Duty Mobile codes (May 2024)
Read Article Warzone is sweatier than ever, and dads are annoyed
Running through Rebirth Island with the Specialist Perk Package while being chased down by a helicopter in COD Warzone.
Related Content
Read Article Call of Duty MW3 and Warzone Season 4 Countdown
Call of Duty Warzone character aiming at opponent
Read Article Kar98k teased for return to Warzone in Season 4
Kar98k sniper rifle in Warzone 1
Read Article CoD campaigns aren’t what they used to be and new players are missing out
Captain Price ordering Ghost in an alleyway in Modern Warfare 3
Read Article Call of Duty Mobile codes (May 2024)
Read Article Warzone is sweatier than ever, and dads are annoyed
Running through Rebirth Island with the Specialist Perk Package while being chased down by a helicopter in COD Warzone.
Author
Nebojša Prijić
Nebojša Prijić is a senior staff writer at Pro Game Guides with over 25 years of experience in journalism, screenwriting, and copywriting. He previously worked as Editor-in-Chief of Maxim Serbia magazine and the IGN Adria website. Nebojša is an old-school gamer who loves real-time strategies, shooters, and RPGs, but most of all, he plays Roblox and mobile games with his son. He remembers the first Diablo, PC games on a single floppy disk, and playing Mortal Kombat on the keyboard.

Write A Comment

How to fix dev error 5433 in MW3 Season 3

Comments are on moderation and will be approved in a timely manner. Please read the following rules before commenting:

  • All comments must be on topic and add something of substance to the post
  • No swearing or inappropriate words
  • No asking or begging for anything free
  • Do not attempt to start a poll in the comments
  • Comments in all CAPS will be removed
  • We reserve the right to remove a comment for any reason
  • Do not impersonate a staff member or influencer

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.