If you update past 9.00 to 9.03 or higher, you cannot go back. Sony patched the exploit in later versions.
Hold the power button until you hear a (about 7 seconds) to enter Safe Mode . Connect your controller via USB. ps4 update 9.00 firmware download
Alternatively, you can also update your PS4 using a USB drive. To do this: If you update past 9
The release of the was a significant milestone for Sony’s last-gen console . While newer versions have since been released, the 9.00 update remains a "sweet spot" for many users due to its specific feature additions and its reputation within the console modification community. Connect your controller via USB
Sony has rolled out the latest firmware update for the PlayStation 4, version 9.00. This update is now available for download, and it's recommended that all PS4 users install it to ensure their console stays up-to-date and secure.
Ensure it is FAT32 or exFAT, not NTFS.