This is accelerating on the side of the possibility of downgrading a PS4 which has a firmware higher than 9.00.The possibility of downgrading a console that has been updated above firmware 9.00 via a single update is now certain, it will not be necessary for the console to have been updated more than once, but at least it is possible .
A new utility appeared a few days ago, it is PS4 Wee Tools, offered by Andy-man, it helps with PS4 nor and syscon dumps.Simply speaking, this is a free and open source alternative to BwE’s PS4-NOR-Validator and Syscon-Patcher tools, written in Python to keep it simple.
Currently, it provides basic functionalities and cannot completely replace these tools, it will be necessary to use in addition PS4 Syscon Tools or NOR validator, but clearly the tool is progressing rapidly.
Thus the PS4 Wee Tools tool allows you to obtain detailed information on the NOR dump, allows you to switch to UART mode, to perform memory tests, or on Keystorage keys, to clean certain system indicators, to modify the frequencies GDDR5 memory, or modify the SAMU boot flag.It also allows to offer an important control on the Syscons, allowing to modify certain locations of SNVS controls.
Changelog v0.4:
– Checked the possibility of applying patches to Syscon
– Fixed manual patch bugs
– Fixed minor errors
Changelog v0.3:
– NOR Entropy Statistics
– Syscon manual patch
– Fixed minor errors
Changelog v0.2:
– Syscon DEBUG toggle
– Syscon NVStorage Class
– Syscon show active slot
Changelog v0.1:
– File Compare
– UART, Memtest switch
– Sys flags clean
– Change mem clock and SAMU
– Downgrade switch patterns
– Verification of the Syscon database
A PDF containing all the steps has been released on the experience of Ruben Waernewyck who managed to downgrade his PS4 from firmware 9.03 to firmware 9.00.his experience was based on many tools, including PS4 Wee Tools.
Attention, Andy-maN reminds him, he is not a PS4 repair professional, he managed some dumps but cannot guarantee the perfect functioning of PS4 Wee Tools, it will take several months of development for that, to use therefore with the greatest caution given that you have access to sensitive elements of the console.