Remove the USB from your computer and plug in to the PS4 MD5 CHECK ANY PUP FILES BEFORE INSTALLATION! - HERE Make a folder on the root of your USB stick called, inside that a folder called, and put the for your chosen firmware in there (PUP's are found below).
On PC: Format your stick to EXFAT using any suitable formatting tool. If this doesn't work a full factory format will be required to remove the pending update nag. If you are on 5.05/6.72/7.02/7.55/9.00 and have a pending update try this: FTP in and delete the PS4UPDATE.PUP file in the /update folder, run update blocker, change your DNS to the ones at the top of this guide, reboot.To enter SAFE MODE, shut down your PS4, hold power to turn it back on and keep holding until you hear the second beep. If you are on 1.00-8.52 and have a pending update, then update via SAFE MODE.
If you have a PS4 above 5.50FW you should aim to update to the next closest firmware that supports jailbreaking: 6.72/7.02/7.55, or lastly 9.00.
