破解最新消息：
Based on a tip received earlier today, which we have independently verified, a copy of firmware 5.05 for PSP is included on UMD title Idol Master SP. There’s no changelog included and as such it is anyone’s guess as to what is new. Sources say the title fails to boot on the latest edition of M33 firmware, so this could very well be a compatibility update, which would explain why Sony has chosen not to release the firmware through usual channels.
Firmware updates have been released solely on UMD in the past. Hot Shots Golf 2 comes to mind, which included 3.96.
看样子是特意给IM做的补丁，不属于官方性质的发布，原来大众高尔夫2也曾有过这情况……以及还有人说是给新系统版本做探路石的，众说纷纭
于是总结下来，官方最近应该不会发布5.05的正式版本，大家好眼光放长放久，稍安勿躁，慢慢等怎么解决了- -b
原消息地址：
http://exophase.com/psp/psp-firm ... er-sp-umd-10153.htm
DA论坛相关的帖子：
http://www.dark-alex.org/forum/viewtopic.php?f=83&t=9796&start=20
以及有人发现5.05版本发布时间比5.03要早9天：
5.03 version.txt
release:5.03:
build:2811,0,3,1,0:builder@vsh-build6
system:48582@release_503,0x05000310:
vsh:p6335@release_503,v48069@release_503,20090115:
target:1:WorldWide
5.05 version.txt
release:5.05:
build:2852,0,3,1,0:builder@vsh-build6
system:47559@release_505,0x05000510:
vsh:p6295@release_505,v48066@release_505,20090106:
target:1:WorldWide
5.05 m33的可能性比较小了，现在要等高人另辟蹊径了，已经有一小票等不及的人入了IM专用姬了
