Use a specialized hardware programmer (like a Teensy, Raspberry Pi, or dedicated flashing tool) to desolder or clip onto the SFLASH chip. Dump the current NOR/NAND flash memory.
If you updated from 12.00 to 13.02, you can only go back to 12.00.
: The exact system version you used immediately before your last system update. ps4 downgrade 13.02 to 9.00
Before diving into the downgrade dilemma, it's worth understanding why version 9.00 has become such a coveted target in the PS4 homebrew community.
Any website or tool claiming to "downgrade" your firmware via a simple USB update or DNS change is a scam . Use a specialized hardware programmer (like a Teensy,
For PS4 players, firmware 9.00 is highly desirable because it allows the installation of homebrew apps and custom modifications. However, if your console is currently on firmware 13.02, you cannot simply download version 9.00 onto a USB drive and install it over your newer software.
: Solder the flasher hardware to the NOR chip to read its current data contents to your computer. : The exact system version you used immediately
A: Never. Security is the priority.
However, this request highlights a common misunderstanding about jailbreaking, downgrading, and the exploit landscape. This write-up explains why it is impossible, what the real options are for low-firmware PS4s, and the risks of scams promising downgrades.
(as of April 2026), you might feel "trapped" on a version that doesn't support the classic jailbreaks. While the short answer is that you cannot downgrade via simple software