Error SU-41343-5

Hi and welcome to the EU community.

Delete everything you currently have downloaded on PC and the memory stick.

Format the USB memory stick as FAT32 or exFAT

It is essential that you have the update file in the correct folders as shown below.

As you have a US account open up https://www.playstation.com/en-us/support/system-updates/ps4/ in another tab.

You need to scroll down to the bottom section as follows, which contaions the correct, larger, reinstallation file.

Perform a New Installation of the System Software

This procedure is for initializing your PS4™ system and performing a new installation of the system software, such as for when you replace the hard disk drive.

• Be careful when using an update file for reinstallation. All users and all data will be deleted.

The following things are needed to perform the update:

• PlayStation^®4 system
• Computer connected to the Internet
• USB storage device, such as a USB* flash drive
  * There must be approximately 1.1 GB of free space. 
  
  
  • On the USB storage device, create folders for saving the update file.
    Using a computer, create a folder named "PS4". Inside that folder, create another folder named "UPDATE".
    
  • Download the update file, and save it in the "UPDATE" folder you created in step 1.
    Save the file with the file name "PS4UPDATE.PUP".
     Click to start the download.
  • Turn off the power of your PS4™ system completely.
    Check that the power indicator is not lit. If the power indicator is lit up in orange, press the power button on the PS4™ system for at least 7 seconds (until the system beeps a second time).
  • Connect the USB storage device to your PS4™ system, and then press the power button for at least 7 seconds.
    The PS4™ system starts in safe mode.
  • Select [Initialize PS4 (Reinstall System Software)].
    Follow the on-screen instructions to complete the update.
• If your PS4™ system does not recognize the update file, check that the folder names and file name are correct. Enter the folder names and file name in single-byte characters using uppercase letters.