Want to really be a geek then get to know all the firmware that is available on the PSP. Sony is a constant battle trying to close up loopholes, but you can easily download hackware, although you can also brick (e.g., destroy your PSP). Pirates! for instance requires version 2.82, so I upgraded, the only note, is don’t go beyond 3.03. I actually took the upgrade but I probably should have used “Open Edition” on 1.5 instead of a hard upgrade. Oh well. Don’t make the same mistake look for “Dark Alex”:
Given the current situation, PSP-Vault recommends you do not upgrade past firmware version 3.03. No downgraders are available for firmware versions beyond 3.03. Think of firmware version 3.03 as the “one way door” of homebrew — go beyond this door and you will not be able to come back inside. Going to firmware 3.11, for example, will deprive you of your ability to downgrade.
At the time of this writing, there are five downgrades possible for TA-081 or below PSPs: 2.00/2.01 to 1.50, 2.50/2.60 to 1.50, 2.71 to 1.50, 2.80 to 1.50, and 3.03 to 1.50. Necessary files and instructions for the 2.00/2.01 to 1.50 downgrader are offered here. Necessary files and instructions for the 2.50/2.60 downgrader are offered here. Necessary files and instructions for the 2.71 downgrader are offered here. Finally, necessary files and instructions for the 2.80 to 1.50 downgrader are available here or here. Finally, necessary files and instructions for the 3.03 to 1.50 downgrader are available here, though you will need an unpatched version of Grand Theft Auto: Liberty City Stories for this particular downgrade.
Is there a way I can “sample” the new features offered by 3.10 and above without actually upgrading my PSP?
Yes. If your PSP is running firmware version 1.50, you are able to install “Open Edition” firmware on your PSP, which brings full homebrew capabilities to your PSP while retaining the functionality of the higher firmware version. The current highest Open Edition firmware available is 3.10 OE-B, availabe at Dark_Alex’s site. Dark_Alex regularly updates his Open Edition versions to that they conform to the latest available official firmware release by Sony.
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