How Do I format a USB to update PS4 software

[ianCtoe24]

My PS4 was was corrupted and the system is now unplayable. Only option when starting is to update the system software through a USB Drive.
I have attmpted to do so after following the PS4 webstites instructions. And it failed multiple times.
Main question is: What system do I use to format a USB?
Ex. exFAT, FAT32 or FAT?
Also what are some good programs for formatting USB drives? (I have San Disk 114 GB Ultra Flash Drive and San Disk Flash Drive 14 GB)

 

[hang-the-9]

Post the link to instructions you use, and what exactly happens when you try that procedure?