Legitimate downgrading is actually a "revert" process that requires significant technical skill and hardware tools:
If you wish to pursue PS4 modding safely, ignore the "V1.00" hype and search for these legitimate, open-source projects (hosted on GitHub, not random file hosts): Ps4 Tool Downgrade V1.00 Exe Download
Are you looking to downgrade your PS4 to version 1.00? Our PS4 Tool Downgrade V1.00 Exe Download can help you achieve that. This tool allows you to revert your console back to its original firmware, giving you more control over your gaming experience. Legitimate downgrading is actually a "revert" process that