PlayStation Error Code SU-30746-9 — What It Means & How to Fix It

What Does This Error Mean?

Error SU-30746-9 on PlayStation means the system software update failed to install. The update file may be corrupted, the download was interrupted, or the PS4 does not have enough storage space. Deleting the failed update and downloading it again usually fixes the problem.

Affected Models

PlayStation 4
PlayStation 4 Slim
PlayStation 4 Pro

Common Causes

The system update file was corrupted during the download
The internet connection was lost partway through the download
The PS4 does not have enough free storage space to download and install the update
The USB drive used to install the update offline was formatted incorrectly
A temporary server-side issue on Sony's update servers caused the download to fail

How to Fix It

Go to Settings > System Storage Management > System Software to see if a partially downloaded update is stored there. Delete it.

Partially downloaded updates can be corrupted. Deleting the file forces a fresh, clean download.
Check available storage: go to Settings > Storage. You need at least 1 GB of free space — preferably more.

If storage is full, delete some games or move them to an external hard drive to free up space.
Go to Settings > System Software Update and try downloading the update again.

Connect via a wired LAN cable instead of Wi-Fi if possible — wired connections are more stable for large downloads.
If the download fails again, try updating via USB: download the update file from PlayStation's website on a computer, copy it to a USB drive in the correct folder structure, and install from USB.

On the USB drive, create folders: PS4 > UPDATE and name the file PS4UPDATE.PUP. This method bypasses any network issues.
If the USB update also fails, try Safe Mode: hold the power button until two beeps, then select 'Update System Software' from Safe Mode.

Safe Mode bypasses potential system conflicts that could be blocking the update installation.

When to Call a Professional

SU-30746-9 is always a software update issue that you can resolve yourself. No professional service is required. If the PS4 hard drive is failing, you may see persistent update failures — a technician can diagnose and replace a failing drive.

Frequently Asked Questions

Will I lose my data if the system update keeps failing?

As long as you do not initialize the console, your data is safe. Failed updates do not delete saves or games. However, some features may not work correctly until the console is updated — online gaming often requires the latest firmware.

Where do I download the PS4 update file for USB installation?

Go to PlayStation's official support website and search for 'PS4 system software update'. There is a link to download the full update file (not the upgrade file). Make sure you download the 'Reinstallation File' which is larger and works even on consoles with update issues.

Why does my PS4 say it is up to date but then shows SU-30746-9?

This can happen when the console downloaded a partial update file and incorrectly reports the system as current. Deleting that partial file from System Storage usually reveals the update is still pending. After deleting it, try checking for updates again.