1) Скачать файл version.txt от прошивки 5.00 и скопировать его в папку seplugins (version.txt можно использовать от любой прошивки, но, естественно, не выше планируемого даунгрейда)
"" and "PlayStation" are registered trademarks of Sony Computer Entertainment Inc. "", PSP and "UMD" are trademarks of Sony Computer Entertainment Inc. "", "XMB", "Memory Stick Duo" and the "Memory Stick Duo" logotype are trademarks of Sony Corp. All product titles, publisher names, trademarks, artwork and associated imagery are trademarks, registered trademarks and/or copyright material of the respective owners. All rights reserved.