: You must enable QA Flags (typically via the Rebug Toolbox or CFW Tools) to bypass the version check.
Your system must currently be running a (such as Evilnat 4.89). how to downgrade ps3 firmware 4.89 to 4.88
If you downgrade to 4.88, you cannot natively log into the PlayStation Network (PSN) because it requires the most updated security layer. While homebrew tools like SEN Enabler or build-in firmware spoofers can simulate a 4.89+ system signature, connecting to official PSN servers on older firmware structures carries an elevated risk of a permanent hardware/account ban. Use offline features or private servers whenever possible. How to Downgrade CFW on a Jailbroken PS3 : You must enable QA Flags (typically via