PlayStation Error Code SU-30746-0 — What It Means & How to Fix It

What Does This Error Mean?

The SU-30746-0 error means a system software update has failed on your PlayStation. The update could not be downloaded or installed properly. This is usually caused by a network interruption, insufficient storage, or a corrupted download.

Affected Models

PlayStation 4
PlayStation 4 Slim
PlayStation 4 Pro
PlayStation 5
PlayStation 5 Digital Edition

Common Causes

Your internet connection dropped during the update download
There is not enough free space on the hard drive to install the update
The downloaded update file became corrupted
PlayStation Network (PSN) servers are temporarily overloaded or down
The system software is in an inconsistent state from a previous failed update

How to Fix It

Delete the failed update file. Go to Settings > System Software Update and delete the current download. Then try downloading it again.

A corrupted download is the most common cause. Starting fresh usually works.
Check your available storage space. Go to Settings > Storage. You typically need at least twice the update size in free space.

If space is low, delete games or apps you no longer play to free up room.
Test your internet connection. Go to Settings > Network > Test Internet Connection. Make sure both 'Internet Connection' and 'PlayStation Network' show successful.

If the test fails, fix your internet connection first before retrying the update.
If the update still fails, try updating via Safe Mode. Turn off the PS4/PS5, then hold the power button for 7 seconds until you hear two beeps. Select 'Update System Software.'

Safe Mode updates are more reliable because they run with minimal system processes.
As a last resort, download the update file to a USB drive from PlayStation's website and install it manually via Safe Mode.

Sony provides update files on their support page. You will need a USB drive formatted as FAT32 or exFAT.

When to Call a Professional

If the update fails repeatedly and Safe Mode options do not help, the hard drive may be failing. A hard drive replacement is straightforward on PS4 and PS5. Contact Sony support for warranty service, or replace the drive yourself for $50 to $100.

Frequently Asked Questions

Will a failed update delete my games or save data?

No. A failed system update does not delete your games or save data. The update only affects the system software, not your personal content. However, it is always smart to back up important saves to a USB drive or PS Plus cloud storage.

How do I update via USB if my internet is not working?

Go to playstation.com/support on another device (phone, computer) and find the system update page. Download the update file to a USB drive in a specific folder structure: USB > PS4 > UPDATE > PS4UPDATE.PUP. Insert the USB into your PlayStation and install from Safe Mode.

Can I skip a system update?

You can postpone it, but some games and online features require the latest system software. If you only play offline single-player games, you may be able to skip for a while. Eventually, you will need to update to access the PlayStation Store and online play.