How to Downgrade a PS4: Complete Modded Warfare Tutorial

How to Downgrade a PS4: Complete Modded Warfare Tutorial
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The Scene Modded Warfare youtuber has posted an impressive video tutorial detailing a complete downgrade of his PS4. In the video, YouTube goes from 6.72 to 10.01, then drops from 10.01 to 6.72.

PS4 sale. Important Notes and Disclaimer (Seriously, read this first!)

Now, to be extremely clear: this is nothing new or groundbreaking at this point, and a key point is that you can only revert to a firmware that you have created a backup for (of your own console). Also, the initial backup is much easier to create if your console is Jailbroken, although it is possible to do it on a “normal” console as well.

So in other words, If you have non-hackable firmware (for example, 10.01 at the time of writing) and you hope that this will allow you to downgrade your console to unlockable firmware, the answer is no, unless you’ve done the preparatory work at a point in time. the one that his console was unlockable. .

From my perspective, this means that the guide will probably be useless for the vast majority of people who find it, usually too late. However, it is of enormous value for multiple reasons. First of all, I’m not sure there was such a detailed (and well done!) guide on how to do this until now. Secondly, we keep saying in this blog that downgrading a PS4 is ‚Äútechnically possible, but…“, so it will now be possible to easily refer to the MW video to explain why it’s difficult at best, and in most cases impossible. As Modded Warfare mentions, it might also have some value for people who are “stuck” on a non-unlockable firmware, but want to update to the latest and greatest version in order to play online.These people can make a backup of their current firmware (in the hope that it can eventually be jailbreak) and then update to the latest firmware.Last but not least, this could pave the way for easier downgrade methods at some point, particularly if some ambitious modders try to work on modchip fixes that don’t involve any welding.

With all of the above being said, assuming you want to backup your PS4 so that you can “easily” go to a newer firmware and then revert to a jailbroken console, here’s my honest advice:

Buy a second PS4 and don’t try to follow this downgrade guide.

Look, I’m not kidding, owning two PS4s is probably a much safer idea than trying an older version, and unless you already have the necessary hardware, it might actually be cheaper, too. (Give or take, there’s about $200 worth of hardware you need to own/buy for the older version.) This could change in the future if the process becomes easier, or if there are significant reasons for going back and forth (unlocking, for example), but For now, downgrading a PS4 is extremely difficult with significant risks of permanently bricking the console, and it’s more of a technically impressive thing than it is useful or profitable..

With all this being said, if you want to stick around for the technically fascinating video, or for the personal insight, you may be the right audience for this. At the very least, you might want to watch the video, if only to hear MW say “We’ll take several dumps” or “we’ll take a good dump” with a straight face ūüôā

Tools needed

Note that the process is easier if you start with a jailbroken PS4, and that’s what MW’s video describes.

This is what you need to prepare and run the downgrade. It is recommended to have all these tools (hardware or software) ready beforehand.

required hardware

  1. Your PS4, running on the firmware you’ll eventually want to go back to
    • This is important. This is a “restore from backup” downgrade method and will not allow you to downgrade to firmware that you never originally backed up. Using someone else’s backup won’t work either!
  2. A hardware flasher like a wee 4 (This is needed to get the SFlash0 from a non-jailbroken console and to copy it back during the downgrade process. It’s also needed to dump the syscon)
  3. a heat gun (to desolder the syscon chip. This is needed for backup)
  4. A welder
  5. A pair of tweezers
  6. A TQFP board
  7. A 4 KOhm resistor
  8. Some Printed circuit board cables
  9. A switching diode
  10. A USB to TTL adapter
  11. A replacement syscon chip (the model you need to order depends on your motherboard, (R5F100LLAFB or R5F100PLA, you can find them on Aliexpress)
    • As I understand it, this is not required, but recommended, so you don’t have to constantly update these chips.
  12. Renesas E2 Lite Programmeror other flashing lights

required software

  1. BwE NOR validatorwhich will help you confirm that your backup files are not damaged (download here)
  2. an FTP client like filezilla
  3. HDD Raw Copy (to make a backup copy of the hard drive)
  4. Drivers for your usb to TTL adapter (eg. drivers for CP2102 previously mentioned)
  5. MW pack file containing the software necessary for the failure process

What you’ll need to back up to prepare for a previous version of PS4

The following data is what you’ll need to backup, then restore, to downgrade a PS4:

  1. Full console hard drive backup
  2. PS4 SFlash0 (NOR Firmware)
    • SFlash0 is extremely easy to get from a jailbreak console, since it’s just a file that you can copy from FTP
  3. PS4 system

Like TL, DR, the idea is that you backup the old 3 data, then you should be able to go to a higher firmware, then roll back. The Modded Warfare video has, of course, all the details.

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