NBA 2K18 – Error message: EFEAB30C or 4B538E50

Hello, All-Stars!

If you’re trying to play NBA 2K18 but are receiving a message with the error codes “EFEAB30C” or “4B538E50”, a common reason for seeing these errors is because you don’t have the latest data downloaded. This means that you cannot continue to play until the latest version has been downloaded.

Read More: how to fix error code efeab30c

If that’s the case, you’ll have to wait for the data to download to your console or PC. It depends on how large the file is and how fast your internet connection. The time taken to complete the download will vary.

That said: Once the download is complete, you’ll see a pop-up message asking you to return to the game’s main menu so the update can go into effect. You should be able play the game without any problems.

Playing a few games in “Play Now” mode should be enough to trigger the download. When your game is completed, NBA 2K18 should prompt the update message in the corner which requires backing out to the main menu. Once you have done that, you will see a loading screen where the update will be applied. You will be automatically taken to the main menu once the update has been applied.

This error message is most commonly caused by the information above, but there are other causes. Below are some workarounds and the causes.

Useful for You: Fix: Error code EFEAB30C NBA2K Server

It is necessary to send another email confirmation for your account.

To do this, perform the following steps:

  1. Go to:
  2. Click “Sign In” at the top-right of the screen
  3. Enter your MyPLAYER account name AND password
  4. When you log in successfully, this is an automatic verification of your account via the log in.
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You may be encountering this error due to the exceeded amount of allowed NBA 2K accounts on your console.

The maximum number of NBA 2K accounts that can be created on a single console is 5. If you’ve created more than 5 accounts, then a security protocol is set in place that disallows server access to all NBA 2K accounts except for the first five accounts ever created on that specific console. We do not have an additional workaround to bypass the error and you will have to use your first five NBA 2K accounts to play online.

Your connection may be blocked by some software.

We will ask you to perform a PathPing as well as a TraceRoute if that is the case.

It may sound daunting but it is not! Just follow these steps:

  1. On a computer (which needs to be connected to the router you are currently using), open the Windows menu, type “CMD” and press Enter.
  2. In the command prompt, enter the following command: pathping -n
  3. After a few seconds the command prompt is going to show some statistics. To copy the output, right-click anywhere in the window and select: Select All. Click again to copy the output. Open Notepad. To paste in Notepad, press Ctrl+V.
  4. At the prompt, type tracert again and hit Enter. Please wait until Trace Complete appears. Send us both documents as attachments.

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Your hard drive’s reserved space has been cleared.

Reserved space is the space on your hard disk that has been reserved for patches and updates. Games like NBA 2K and WWE 2K regularly make use of this feature. If you delete a game’s reserved space, the game will re-create it when it launches. When this happens, if the process is cancelled, there’s a possibility you might encounter problems (including the error message: EFEAB30C in NBA 2K18).

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We can’t stress this enough: Do not delete a game’s reserved space on your hard drive.

You are out of sync.

Your data is out of sync. Files can often appear missing if all data has not been synced. Select the “Play Now” option as shown below and let your game sit on that menu until an update message is sent. It is possible for the message to take several hours (or even days) depending on where you are at the time of syncing.


You will be asked to return to the main menu after you receive the message. You will be prompted to restart your browser. This will activate the update. After the update has been applied, you’ll automatically be taken to the main menu.

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