Before you begin, you must take these steps to ensure your console does not accidentally update to a newer, non-exploitable version.
Comprehensive Guide to PS4 Firmware 9.00: Download and Installation ps4 900 firmware download install
: Go to Settings > System > System Information . Ensure your version is lower than 9.00 . If it is already higher, you cannot downgrade to 9.00. Before you begin, you must take these steps