No. Any website or service claiming to offer a software-only downgrade for normal retail PS4s is likely a scam. "Be wary of anything that says it can, because it is most likely a scam".
The author and this website are not responsible for any damage or data loss caused by attempting to downgrade a PS4. Proceed at your own risk.
Reassemble the PS4 and boot it. It should now be on a lower firmware version, allowing you to install the 9.00 firmware. Alternative/Partial Downgrade Information ps4 downgrade 10.50 to 9.00
If you are not a hardware modder, consider looking for a console already on 9.00, as the cost of tools and labor for a downgrade can exceed the price of a used, lower-firmware console.
Run a PKG file called "Downgrade 10.50.pkg" Reality: You cannot run any package file on 10.50 because you need a jailbreak to install PKGs. You are locked out of the exploit chain. These files are either malware for PC or clickbait. The author and this website are not responsible
The PS4 uses a system called to ensure system stability during updates. It has an active slot and a passive (or backup) slot.
For PlayStation 4 enthusiasts and homebrew developers, firmware version 9.00 holds a special place as the last widely exploitable system version with a mature jailbreak scene. If your console is currently on firmware 10.50 or higher, you might be wondering whether it's possible to go back to 9.00. The short answer is that downgrading is . This comprehensive guide explores why downgrading is so challenging, what methods exist (including hardware-based approaches), and the significant risks involved. It should now be on a lower firmware
Disassemble the console to access the motherboard.