Installing on your PS4 is a common step for those looking to stay on a stable, exploitable version for homebrew. Since Sony only offers the latest version (currently 12.02 or higher), you must download the 9.00 file from third-party archives and install it manually via USB. 1. Preparation
The PlayStation 4 (PS4) 9.00 firmware update is a significant release that enhances the console's performance, security, and features. This guide provides a step-by-step process for downloading and installing the PS4 9.00 firmware update. ps4 900 firmware download install