技術ブログ
Soldering wires directly to the PS4 motherboard to communicate with the Syscon chip. Best PS4 Downgrade Tools & Methods (2026 Update)
This is the most dangerous step. You would need to micro-solder wires to the Syscon and NOR chips. You would then use software (like Wee Tools or a Teensy) to "dump" (read and save) the current data from these chips. downgrade tool ps4
The is used to connect to the Syscon chip for dumping and patching, often used in conjunction with detailed tutorials for moving from higher versions (e.g., 12.50) back to stable jailbreak versions like 9.00. Important Prerequisites and Risks Soldering wires directly to the PS4 motherboard to
If you wish to update to a higher version to play online, you can do so, but you must have the earlier, lower-version backup ready. You would then use software (like Wee Tools
If you have the technical skill to perform hardware modifications, the community uses the following tools: