PS4 cant find system update file
To fix a PS4 not finding the update file during OS reinstallation, ensure the USB drive is formatted to FAT32 or exFAT, create a folder named "PS4", and within that, a folder named "UPDATE". The file must be named "PS4UPDATE.PUP" and placed inside the UPDATE folder.
Correct Reinstallation File: Ensure you downloaded the full reinstallation file (approx. 1GB+), not just the standard update file, from the official PlayStation website.
Folder Structure: The folder structure must be exactly USB DRIVE > PS4 > UPDATE > PS4UPDATE.PUP. Case Sensitivity: Folders and file names must be in all uppercase.
USB Drive Format: Format the USB drive to FAT32 or exFAT.
File Name: Ensure the file is named PS4UPDATE.PUP. If your computer adds a extension (e.g., PS4UPDATE.PUP.PUP), it will fail.
Try Different USB Port/Drive: Use a different USB stick if the first one isn't recognized, preferably a USB 2.0 drive, and try the rear USB port if applicable.