Completely turn off your PS4. Do not use Rest Mode.
Download the file from the official GitHub repository of developers like ChendoChap or SpecterDev. Plug USB Drive B into your computer.
. If you have already updated to 9.03 or higher, you cannot downgrade to 9.00. Step 1: Download Firmware 9.00 Since Sony only hosts the
The Ultimate Guide to PS4 9.00 Firmware: Download, Installation, and Jailbreak Setup ps4 900 firmware download install
USB Drive (E:) > PS4 > UPDATE > PS4UPDATE.PUP Step 3: Installing the Firmware via Safe Mode
To ensure you have an authentic file that will not brick your console, verify the MD5 hash of the downloaded PS4UPDATE.PUP file using a checksum tool on your PC: b8abdf6dae1b206ec14092b77a06f364
To keep your 9.00 modified environment safe and functional, observe the following rules: Completely turn off your PS4
Wait a few seconds until a system notification appears in the top-left corner stating Click OK on the web browser prompt.
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, you likely want the specific stability and compatibility this version offers for homebrew applications and customization. Since the PS4's automatic update feature will always push you to the latest official firmware (which is currently beyond 9.00), you must perform a manual update via a USB drive. Important Pre-Installation Steps Plug USB Drive B into your computer
The PS4 requires exact, case-sensitive folder naming to detect the file. Insert the USB drive into your computer. Open the drive and create a new folder named PS4 .
Because Sony no longer hosts version 9.00 on their main support site, you must source the specific file manually.
: If you have replaced your hard drive, you need the "Recovery" version, which is approximately 1 GB .