Flash the modified NOR dump back onto the Serial Flash chip. Flash the modified EEPROM dump back onto the Syscon chip.
Future research should focus on:
: Any website offering a "PS4 Downgrade PUP file," a "rebuild database downgrade exploit," or software-only downgrade links is fraudulent. These sites are designed to generate ad revenue, harvest data, or trick users into completing online surveys. The Reality of Hardware Reversion (Syscon Method) ps4 downgrade 1302 to 900
: Because of this dual-slot system, a hardware mod can toggle the active slot back to the older version. However, if your previous version was 12.52 or 13.00, you can only revert back to 12.52 or 13.00. The console has zero hardware memory of firmware 9.00 if multiple updates have occurred since then. Flash the modified NOR dump back onto the Serial Flash chip
Downgrading a PlayStation 4 from a high firmware version like to an older one like is a highly technical process. It is generally not possible through simple software updates These sites are designed to generate ad revenue,