What is custom firware for the psp?

Can I upgrade my PSP firmware straight from the official 4.01 to the custom 5.00 M33-6?

  • I'm confused as to whether or not I need to downgrade my PSP before installing this custom firmware. I currently have the official 4.01 firmware, and I want to use a pdf reader on my psp. Through some exploring, I learned that I need custom firmware. I guess I'm also asking if there's a PDF reader for PSP that doesn't need custom firmware.

  • Answer:

    There is no official PDF reader that can run off any normal firmware. Custom firmware can brick your PSP...so be careful and make sure your know what your doing!

Eryn at Yahoo! Answers Visit the source

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