If you did not back up your console's unique flash files while you were on a lower firmware, a hardware revert to that specific version is generally impossible. Why Users Want to Downgrade
The Logic: The PS4 stores two copies of its firmware: the current one and the previous one. ps4 downgrade 1302 upd
Sony regularly releases firmware updates to improve system stability and, more importantly, to patch security vulnerabilities. Version 13.02 was designed to shore up the system's defenses. For the average user, this means better performance and continued access to the PlayStation Network (PSN). For the enthusiast community, however, it often means the loss of access to custom themes, backup managers, and specialized homebrew software. Can You Downgrade PS4 13.02 via USB? If you did not back up your console's
If you are already on 13.02, your options are limited but specific: Version 13
While the "ps4 downgrade 1302 upd" search is popular, the reality is that software downgrading remains blocked by Sony's security architecture. Unless you are an expert in micro-soldering with previous backups of your system, your best bet is patience. Keep your console offline and wait for the modding community to find a new entry point into the 13.02 firmware.