He opened the User Guide. Instead of a manual, a webpage loaded. A stylized gold and black menu appeared: GoldHEN v2.0b18 .
: Edit the Syscon register data to change the active boot slot flag back to the previous slot containing the 9.00 files.
Reminder: You can downgrade your PS4 that you barely use anymore
For the average user, and especially for someone who has already updated to 13.02, this method is not a practical or advisable option. ps4 downgrade 13.02 to 9.00
Here is what happens when you try to install 9.00 on a console that is currently running 13.02:
In the PlayStation 4 homebrew and custom firmware (CFW) community, is considered the "Holy Grail." It is the last exploitable firmware version that supports a stable jailbreak, allowing users to run backup games, mods, and homebrew applications.
Hardware downgrade is not a “downgrade” in the software sense — it’s component replacement. It is not viable for typical home users. He opened the User Guide
Sparse and risky
The rain hammered against the window of Elias’s apartment, a rhythmic drumming that matched the thrum of the cooling fan inside his PlayStation 4 Pro. On his desk, next to a half-empty energy drink, sat a USB drive. It was an unassuming piece of plastic, but to Elias, it was a nuclear warhead.
You can only revert to the version you were on immediately before updating to 13.02. : Edit the Syscon register data to change
Firmware 9.00 represents a golden era for PS4 homebrew development.
Using community-developed software tools, you modify the Syscon dump to tell the chip to boot from the secondary firmware slot instead of the primary slot.
He didn't stop there. He navigated to the User Guide, the innocuous manual usually filled with boring legal text. But he had prepared the DNS settings on his router to point to a custom server.
You are warned again: Attempting this without professional experience will destroy your PS4.
“The USB storage device contains an update file for reinstallation. Version 9.00. Do you want to update?”