PS4 FPKG Enabler on PS5 Firmware 4.03 has been released
The Homebrew scene for PlayStation systems has been growing steadily, and today marks another big breakthrough for PlayStation 4 and PlayStation 5 hacking.
Hacking developer sleirsgoevy has released a homebrew app titled "PS4 FPKG Enabler", which basically allows a PS5 system to run fake PS4 package files (known as FPKG) while on a firmware version of 4.03. The process requires the user to execute the binary file through a wireless connection by taking note of their IP address, and accessing a specific website on the PS5 that will prompt for the payload to be injected with the message "waiting for payloads", then via a computer (or any device/method of sending files through a wireless connection) the PS4 FPKG bin file is sent to the PS5. In case the PS5 of the user gets frozen or reboots, all that's needed is to retry the browser's link until the message of "waiting for payloads" appears.
This payload also enables the Debug mode in the system. As of the time of writing, this works only for PS5's with a system firmware of 4.03, and while this is relatively new, it could get backported into other hackable firmwares, like 3.00 up to 4.51, in the future.
GitHub Page for PS4 FPKG Enabler