If you're looking to update your PSP, the official update files can typically be found on the Sony website or through the console's built-in update feature. However, for the PSP-2000 specifically, updates were usually provided through the console itself or through Sony's official support pages.
Note: You may need to right-click the download button and select "Save link as..." to begin the download if your browser blocks the link. psp2updatpup download link
Sony’s Official Server Archives (via direct links): Sony hosts older PUP files at predictable URLs. For example: If you're looking to update your PSP, the
: If you are looking to move to a lower firmware, you will need the Modoru software on GitHub alongside your specific PC Interface Sony’s Official Server Archives (via direct links): Sony
For standard updates, it is straightforward. For downgrading, it requires precise placement in the file system (usually ux0:app/MODORU000/
Given the age of the PSP and its updates, direct links may not be readily available or supported anymore. For the most accurate and secure information, visiting Sony's official support pages or community forums is recommended.