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PS4 error code

PS4 Error SU-35931-1: What It Means and How to Fix It

By Tulasiram Pemmadi · Published · Source checked 31 October 2026

SU-35931-1 in one line: The downloaded update file is damaged.
Try this first: restart the PS4 and download the update again.
PlayStation 4 console with DualShock 4 controller
Photo by Evan-Amos / Wikimedia Commons (public domain). Steps from PlayStation Support.

What SU-35931-1 means

PlayStation Support says: “System software update data is partially corrupted.” (official page)

Sony's official PS4 page for SU-35931-1 gives the steps below in this order. We summarise it; we did not test on hardware.

Likely causes

How to fix SU-35931-1, easiest first

  1. Download again
    Restart the PS4 and download the update again.
  2. Update by USB
    If that fails, install the update from USB in Safe Mode.
  3. Contact support
    If the update fails many times, the console may need service.
Fixes at a glance
StepWhat to doSource
1Download againOfficial
2Update by USBOfficial
3Contact supportOfficial

When to contact support

If Sony's steps don't fix it, contact PlayStation Support.

SU-35931-1 FAQ

What does PS4 error SU-35931-1 mean?

Sony says: "System software update data is partially corrupted." The downloaded update file is damaged.

Sources

Official sources last checked 31 October 2026.

Other PS4 error codes

PS4 troubleshooting guide · All PS4 codes · Error code directory

About the Author

Tulasiram Pemmadi · Owner and editor

Tulasiram Pemmadi is the owner and editor of NextPlayIntel, which operates from India and the United Arab Emirates (UAE). He sets the site's editorial policy and publishes its gaming news, GTA guides, explainers and hardware reference pages. Articles are researched and written with AI assistance and fact-checked against the linked sources. Unless a page says otherwise, guides summarise published information and are not hands-on tests.

Researched and written with AI assistance, fact-checked by Tulasiram Pemmadi against the linked sources. This page summarises the official support page and the linked reports; the fixes were not tested on hardware by NextPlayIntel.