Editing Motherboards
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Before [[Sony]] saw the 2.50/2.60 downgrader they made a new motherboard for the PSP called TA-082, with a different Manufacturers [[Clock Generator]] Vendor ID. When a TA-082 is downgraded below firmware 2.00, the older firmware IPL won't recognise the new Clock Generator ID, and the PSP will fail to boot, appearing [[brick|bricked]]. | Before [[Sony]] saw the 2.50/2.60 downgrader they made a new motherboard for the PSP called TA-082, with a different Manufacturers [[Clock Generator]] Vendor ID. When a TA-082 is downgraded below firmware 2.00, the older firmware IPL won't recognise the new Clock Generator ID, and the PSP will fail to boot, appearing [[brick|bricked]]. | ||
Beginning with the TA-082 | Beginning with the TA-082 the PSP's factory firmware is now stored in IdStorage. While it doesn't appear to be used for anything, it can be speculated this was a security measure to detect people downgrading. For example Sony could use this to detect a PSP running a lower firmware than it shipped, and it would void the warranty or prevent upgrading. This is implied as Sony added detection for IdStorage downgrader patch in 3.30+ and it will refuse to update if the keys are corrupted. | ||
A method of checking whether or not a TA-082 motherboard is installed on a PSP without voiding the warranty is shown [http://psp.about.com/od/homebrew/ig/TA-082-Motherboard-Tutorial/index.htm here]. | A method of checking whether or not a TA-082 motherboard is installed on a PSP without voiding the warranty is shown [http://psp.about.com/od/homebrew/ig/TA-082-Motherboard-Tutorial/index.htm here]. | ||