SU-30746-0 blocks PS4/PS5 firmware updates when storage is low or the update file is corrupted.
Safe Mode update
If SU-30746-0 repeats, install the update via USB in Safe Mode using Sony's official file.
DNS and network optimization
Change DNS to 1.1.1.1 (Cloudflare) or 8.8.8.8 (Google) on your console or router. Stale ISP DNS caches cause NP- and 0x errors after platform maintenance. PS5: Settings → Network → Settings → Set Up Internet Connection → DNS Manual. Xbox: Network Settings → Advanced → DNS Manual.
WiFi band and wired ethernet
Connect via 5GHz WiFi band instead of 2.4GHz for lower latency, or use wired ethernet for the most stable connection. Console downloads and online verification fail more often on congested 2.4GHz bands shared with smart home devices.
Safe Mode rebuild and license restore
PS5 Safe Mode → Rebuild Database fixes corrupted system files without deleting games. Also try Settings → Account Management → Restore Licenses after network fixes. Xbox: hold power 10 seconds, clear persistent storage in Blu-ray settings, then restart.
Wired ethernet for downloads and auth
Platform downloads exceeding 50GB and license verification during peak hours fail more often on WiFi. Wired ethernet eliminates packet loss that triggers NP-104602-3 and similar codes during PSN or Xbox Live auth checks.
How to fix step by step
- 1Free at least 1 GB storage (more for major updates).
- 2Restart PS in Safe Mode → Update System Software.
- 3Use wired LAN for download.
- 4Delete failed update file and retry.
- 5Download update to USB from PlayStation.com on PC.
- 6Contact Sony support if hardware storage fails.
How SU-30746-0 differs from related codes
- Error CE-34878-0: PlayStation failed to download or install a game update. (usually client-side)
- Error NW-31201-7: PlayStation Network could not connect to the server — DNS or PSN outage. (server or client)