Most searched
CE-30391-6
The console cannot start the application, and it is usually tied to the system losing
its date and time.
What is actually happening
The PS4 keeps time using a small CMOS battery on the motherboard — the same
CR2032 cell you find in a PC. When that battery dies, unplugging the console for even a
few seconds makes it lose the date entirely, often resetting to 1970. Games then refuse
to launch because the licence check cannot validate against a nonsense date.
Try this first, in order
- Set the date and time manually in Settings → Date and Time, or set it to update over the internet.
- Sign out of your account, sign back in, and relaunch the game.
- Update the system software to the current version.
The tell: if the console works fine until you unplug it, then loses the
date and throws the error again, the CMOS battery is dead. It is a genuinely cheap part
and a straightforward bench replacement — one of the least expensive PS4 repairs
there is. Bring it in and we will confirm it for free.
CE-30035-1
Reported as a temporary condition — the system asks you to try again after a while.
Usually clears on its own. Restart the console, check the PlayStation Network status page, and retry. If it persists across restarts and days, treat it as a storage or system-software issue rather than a transient one.
CE-33743-0
Connection to the server failed.
Network side, not hardware. Test your connection in Settings → Network → Test Internet Connection, restart the router, and check PSN status. A console that games offline perfectly well is not broken.
CE-34878-0
A general application crash.
The single most common PS4 code. Restart the game, then the console. Make sure both the system software and the game are fully updated. If it only happens with one title, it is that title. If it happens across everything, look at storage health.
Everything else
Sony does not publish plain-English explanations for most codes.
We are not going to invent them. Use the decoder above to identify the subsystem, then work through the matching symptom section below. That will get you further than a made-up definition.