Typically, these tools work in conjunction with hardware modifications that dump the NOR and Syscon chip data from the PS4 motherboard.

: A specialized USB programmer to interface with the console's chips Soldering Equipment : You must solder wires to the chips on the PS4 motherboard PC Software PS4 Wee Tools or similar "PS4 V Tools" apps to read/patch the data 2. Hardware Connection Disassemble the PS4 : Open the console to access the motherboard Pin Lifting

(common software for this process), you must have specific physical components: Teensy++ 2.0 or TNC4

While the is fake, legitimate downgrading is possible under very specific conditions. Here are the only real methods.

Sony implements a revocation mechanism. The system inventory tracks the highest firmware version installed. If you attempt to install an older firmware package via a USB flash drive, the console rejects it.

There are two distinct types of downgrading available for the PlayStation 4:

True downgrading requires:

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