Currently, there is no software-only method to downgrade a PS4 from firmware 13.02 to 9.00.
Compatibility: Almost every piece of custom software developed for the PS4 is designed to work flawlessly on 9.00. ps4 downgrade 1302 to 900 top
and custom software. Versions higher than this typically have patched the vulnerabilities required for these modifications. Important Warning Attempting a hardware downgrade carries a high risk of permanently bricking Currently, there is no software-only method to downgrade
Please be aware that downgrading your PS4 can have unintended consequences, such as: A USB drive formatted to FAT32 A computer