Search marketplaces like eBay for consoles explicitly listed with firmware 9.00 or lower.
Skilled hardware engineers can use a (like a Teensy++ or a specialized programmer) to physically dump the BIOS/NOR flash chip from the motherboard. By hex-editing this dump, they can theoretically change the reported firmware version. ps4 downgrade 1302 to 900
: The method is only compatible with consoles using a Renaissance Syscon chip (model numbers starting with A0). Warning: Avoid "One-Click" Scams Search marketplaces like eBay for consoles explicitly listed
It sounds like you're referring to a scenario. To clarify: that they explicitly designed against):
Here is the technical truth that Sony doesn’t want you to know (or, rather, that they explicitly designed against):
