PS4 Error Code (CE-34878-0) Troubleshooting Guide 
If you’re getting the error code (CE-34878-0) on your PS4 while you’re playing or even when starting up your system, this is certainly not a good omen. It indicates that the PS4 system is undergoing a serious problem that prevents it from functioning properly or at all. For that reason, PS4 Error Code (CE-34878-0) is classified as one of the most dangerous errors.
But, being dangerous doesn’t mean unresolvable. The good news is that in most cases users were able to work around this error and get their PS4 system back to normal. This is what you’re going to learn in this prolonged and detailed guide.
A Brief On PS4 Error CE-34878-0
The PS4 Error code (CE-34878-0) is a CE (code execution) and 34878-0 (hexadecimal number) error code that happens when you’re trying to run an application, but the system does not know how to do it because of missing libraries, improperly installed applications, corrupted system files or other reasons. PS4 (CE-34878-0) Error code is also known as PSERR_BADAPP.
According to user reports, the game/app crashes a short time after launch with the error (CE-34878-0) appearing on the screen. Nevertheless, other users reported that when they restarted the game or the PS4, the issue would go away. However, that didn’t work for the majority of users who have the same issue.
Worth it to say that you may, depending on your case, experience Error (CE-34878-0) on particular games/apps only, whereas other games/apps would work flawlessly.
A Simple Restart May Do the Job
A restart is usually enough to fix Error (CE-34878-0). In fact, restarting the PS4 fixes many errors and performance issues of the console, not only that one. However, there are some cases that are complex enough that you need to do more troubleshooting.
When PS4 Error (CE-34878-0) occurs, it will be difficult or not possible to play the particular game that generates that error. Your very first step in such a situation is, as mentioned earlier, to restart the PS4 and try your luck again.
In situations where the PS4 Error (CE-34878-0) happens regularly to the extent that your game is no longer playable or the PS4 system generates this error almost on every app, you may have a malfunctioning system or there’s something wrong with that specific app/game on your PlayStation 4 System.
Why Do I Keep Getting Error CE-34878-0?
PS4 Error (CE-34878-0) is a software-level issue that indicates that there’s a sort of data corruption/conflict within your system. This can be the result of one of the following reasons:
- Improper installation of a game/application or of its update.
- The PS4 is dirty inside and the system is overheating, and as a result, the data couldn’t be processed properly.
- Incompatibility issue between the game you’re trying to play and the currently-installed version of PS4 system software.
- Some of the PS4 system software core files got corrupted or damaged.
- Instable power connection due to a damaged PS4 power cord, a defective PS4 power supply, a malfunctioning power strip/outlet, or even short circuits in a part of your PS4 motherboard.
- The storage device on which your game/app is installed is defective and needs maintenance.
- The PS4 CMOS data is corrupted and must be reset
So, let’s go through the process of troubleshooting the PS4 Error (CE-34878-0) and find out how to totally fix it. You’ll also learn how to avoid this error from happening in the future. So, keep reading on.
Why Does the Game/App Crash With This Error?
Users may wonder why Error (CE-34878-0) causes the game or app to crash and become totally inoperative. Well, the answer is simple— It’s because one or more of the core files responsible for the game/app to properly run cannot be accessed due to corruption or damage.
Diagnosing Error (CE-34878-0)
Before trying to fix PS4 Error Code (CE-34878-0), you have to diagnose that error by watching the behavior of your console. Be observant and take note of when this error exactly happens.
- If PS4 Error (CE-34878-0) happens once the PS4 starts up and at the very moment it loads the home screen, it means that you may need to initialize PS4 or format the internal hard drive.
- In many cases, it happens when running games or watching movies only. Yet, when running applications, it works just fine. That indicates there’s a problem with the PS4 graphics card. In some cases, just connecting it to another monitor can fix this issue.
- If this error occurs only with games installed on an external hard drive, it means it’s defective. Most probably it suffers from bad sectors and you have to FULL (not quick) format it. A full format will eliminate/fix bad sectors and restore the lost performance of the drive.
- When you play online and an error (CE-34878-0) shows up, most probably it’s your internet connection that got interrupted.
- A sudden power surge or an abrupt hardware failure can cause this error as well. Usually, this is momentary and won’t repeat.
Eventually, whatever the reason is, you better go through this guide and find a proper fix for Error Code (CE-34878-0) that suits you best.
Official PS4 Error Code CE-34878-0 Fix
If you visit the official website of PlayStation, you’ll find a suggested set of steps to fix that error. [source]
An error has occurred with the application.
- Close the application, install the latest System Software and game updates and restart the system.
- If you have upgraded the Hard Disk Drive (“HDD”) in your system, please re-install the original HDD.
- If the error occurs again, back up your saved data, and then go to [Settings] > [Initialization] and choose [Initialize PS4].
- If the error occurs with every application, or as soon as the application starts, please contact PlayStation Support.
Many users find this official fix for PS4 Error Code (CE-34878-0) not very helpful. There are details you must be aware of in order to overcome this error and avoid it in the future. That’s why this guide has been made.
How To Fix PS4 Error CE-34878-0?
Ok, now to the most important part of this guide which will answer the question: How do I fix error code CE-34878-0 on PS4?
Here’s a collection of suggested resolutions that will help you work around PS4 Error (CE-34878-0).
Solution #1: Power Cycle (Restart) the PS4
When you see error code CE-34878-0, the first and easiest thing you should do is restart the PS4. Afterward, check to see whether that has resolved the issue or not.
If a restart didn’t help resolve Error (CE-34878-0), you need then to fully turn off PS4 and unplug its power cable from the power outlet. Follow the simple steps listed below to successfully carry out this operation.
- Turn the PS4 off.
- Disconnect the PS4’s power supply from the power outlet.
- Wait for 30-60 seconds.
- Plug the power supply back in.
- Turn on the PS4 and let it boot up.
Turning off PS4 has many benefits to the overall performance of the PS4. For that reason, it’s one of the very common solutions to fix any PS4 error.
Once the console boots up, launch that particular game/app that caused the error and see whether Error (CE-34878-0) appears again or not. Otherwise, if the PS4 won’t turn on for some reason, you have to keep trying until you get it to turn on again.
If Error (CE-34878-0) does appear again, but this time it has taken longer than before, it means you’re on the right track and about to figure out why it happens. You’ll need then to turn off PS4 again, but this time wait 5-10 minutes before turning it back on.
Now, look carefully after you turn on the PS4, does Error (CE-34878-0) take an even longer time than before to appear, or nothing has changed?
If it does take longer, it probably means you have overheating issue with PS4.
Solution #2: Move Your Game to the Internal System Storage
If you’re encountering PS4 Error Code (CE-34878-0) on a game/app installed on an external HDD, the problem then might be in the external HDD itself. It’s strongly recommended to move your game to the internal storage of PS4 and try it from there.
Solution #3: Update PS4 System Software
Updating PS4 system software can fix many issues related to the console’s performance. For that reason, it’s imperative to keep your console up to date with the latest version of system software.
To start the process, just do the following:
- Go to the PlayStation home screen, select Settings.
- Choose “System Software Update” to install the most recent update.
- Your PS4 will check for available updates for its system software and install any that are available. Let the console do its thing.
- After the installation is successfully accomplished, restart the PS4 and check the specific game/app that caused the error.
Now, if this has not fixed the error and you still see that annoying message, try the other solutions.
Solution #4: Update the Game/App
Sometimes the failure occurs from the game/app itself due to deficient/improper coded files. That’s why the manufacturers keep releasing updating patches for their games/apps to fix these issues.
To do that, simply follow the steps below:
- Go to the PlayStation Home screen.
- Highlight the game affected by this problem.
- Press the Options button on the controller.
- Highlight and select Check for update to check for game updates for the affected game and install any that are available.
Once the process is complete, try to launch the game/app and see whether the problem has gone or not yet.
Solution #5: Turn Off Face Recognition
If a PS Camera is connected to the system, remove it and reboot the system, then turn off Enable Face Recognition.
- From the PlayStation 4 home screen, select Settings.
- Select User.
- Select Login Settings.
- Uncheck Enable Face Recognition.
Solution #6: Disable Mods
Some gamers confirmed that disabling recently added mods helped them repair this error code. While this solution might not work for all users, it is worth trying out.
Solution #7: Change PS4 Display Settings
It has been reported by some users that changing the video output settings from Automatic to 720p would fix this problem. Other resolutions may work fine as well. So, try all of them and see what suits you best.
By default, the PlayStation 4 will automatically manage video output settings, but if you want to use a specific video resolution:
- Go to Settings > Sound and Screen.
- Select Video Output Settings > Resolution.
- Select your default resolution:
- 1080p (the default resolution for most PS4 games)
That’s it all.
Solution #8: Check PS4 Hard Drive
As the official fix suggests, if you have recently changed the stock hard drive of PS4 and then started seeing Error (CE-34878-0), try to install the original hard drive and see whether this fixes the error or not. In many cases, this error occurs with the original/stock hard drive of the PS4.
If you’re not considering upgrading the PS4 internal hard drive with a more powerful drive any time sooner, or you have already done so but faced Error (CE-34878-0), the hard drive may malfunction and needs service.
Hard drive failure is a common incident that every savvy must have encountered. It happens due to varied reasons, especially the presence of bad sectors that hinder the hard drive to operate properly. Additionally, if the PS4 HDD doesn’t make any kind of noise (clicking/grinding), there’s a big chance to fix it. Check out this article to learn more about PS4 hard drive failure and how to repair it.
The PS4 internal hard drive might be working fine and flawlessly, but there is a sort of power shortage in your PS4 that prevents the hard drive to run properly. The cheapest workaround for this issue is to replace your PS4 HDD with an SSD because SSDs use less power and are more resistant to power instability.
Solution #9: Rebuild PS4 Database
Sometimes rebuilding the PS4 database can resolve this problem and fix that error. It’s a very easy process to fulfill, but it may take a few hours though.
To successfully rebuild the PS4 database, please follow these steps:
- Turn off the PS4 completely (i.e. not in Rest Mode).
- Once off, press and hold the power button. Release it after you’ve heard two beeps: one when you initially press, and another about seven seconds later. This will boot the PS4 into Safe Mode.
- Connect a DualShock 4 controller with a USB cable and press the PS button on the controller. If the PS4 isn’t recognizing the controller, you may have attached a ‘power only’ USB cable – use the one that came with the controller.
- Select the option Rebuild Database. It will warn you that it may take hours.
Solution #10: Delete The Game and Redownload it
Some of the core files of the game might be corrupted/damaged causing the PS4 system to generate the error code CE-34878-0. If you’re getting that error on a specific game whereas other games work flawlessly, then you may want to delete that game and all its saved data and download and install it again.
It’s strongly recommended that you store your game saves and any important data on a USB storage device before carrying out this step.
Solution #11: Factory Rest PS4
To reset the PS4 to factory settings, you have to perform PS4 initialization. This feature can resolve so many issues related to the performance of PS4. So, every PS4 user must know how to do it the right way. Just in case.
Before we begin, you should know that a factory reset completely wipes the console’s hard drive and can even remove its system software. In other words, it will delete everything on your PS4 HDD, including your games and PS4 operating system.
It’s the penultimate resort when a software glitch stops your PlayStation 4 dead in its tracks, particularly when booting up or when you want to make sure the console no longer has your data on it.
You should back up any data you want to keep, such as images and video, to an external device or to the cloud. In order to back up data using the cloud, you’ll have to have a PlayStation Plus account.
There are two ways to reset your PS4 — From the console’s dashboard or in Safe Mode if the console is having boot-up issues. For PS4 error (CE-34878-0), you need to choose the full initialization.
Do not turn off your PS system during initialization. Doing this might damage your system.
- Go to PS4 Settings > Initialization > Initialize PS4.
- Select Full.
- Follow the instructions to complete.
- After finishing, restore all your backup data, and reinstall the games and applications.
- Try the games to see if it works now.
Solution #12: Clear the PS4 CMOS Memory
You won’t come to this point until you’ve tried everything above and none worked. In fact, this suggestion needs somewhat savvy to carry out. You need to make it the last do-it-yourself resort to fix Error [CE-34878-0] in the PS4 system.
You need at this stage to clear the PS4 CMOS memory in order to set things right. This process might be kind of difficult and time-consuming because you need to open up the PS4 case and carefully remove the PS4 CMOS battery.
Simply, if you can’t do it, don’t try it. Seek help from a well-versed technician.
Solution #13: Contact Sony Support
If absolutely none of the solutions listed and described above were enough to get rid of the error code (CE-34878-0) in your case, the cause of the issue might not be simply something you can fix on your own. It might actually be something that’s much deeper and more severe than you think it is. That being the case, if trying to fix this problem on your own has turned out to be a bust, I advise that you use PlayStation Support and see what the professionals have to say about it.
If for any reason you have failed to contact PS4 Support, we are happy to help you here with what we can. Just drop us a comment below and we will respond as soon as possible.
PS4 Error Code (CE-34878-0) FAQ
What Is CE-34878-0 Error On PS4?
This error code refers to the situation where the game/app you're using has corrupted files and must be repaired.
What Does CE-34878-0 Mean On PS4?
Error CE-34878-0 means the currently-in-use game/app can no longer continue due to some data corruption going on within the game itself.
How To Fix CE-34878-0 Error?
There are several methods to fix Error CE-34878-0, including reinstalling the particular game that causes the error, updating it, update the PS4 system software, and more..
What Causes Error CE-34878-0?
Some files of the game/app that's currently in use are corrupted and the PS4 system can't process the. This results in a conflict between the game and the system itself, therefore it halts and stops working.