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: Genuine firmware downgrading typically requires specialized hardware skills, such as soldering and using a Teensy or Raspberry Pi to interact with the console's Syscon and Nor chips. This process involves "reverting" to a previous slot if it hasn't been overwritten, but it is highly technical and carries a risk of bricking the console.
Technical Overview: PlayStation 4 Go to product viewer dialog for this item. Firmware and Game Version Downgrading ps4 tool downgrade download