简单说，就是现在的2.71的系统，也能够玩儿ISO游戏了，估计第三方软件也可以，以下是原文：
复制代码- Port of devhook (by Booster) launcher to 2.71 by Dark_AleX.
- Only the launcher needed to be ported, since the core prx (devhook.prx) loads fine in hen revision B.
- The included version of devhook is 0.45, since 0.46 seems to have problems in emulating 1.50 (this also happens in 1.50)
- If you want to use 0.46, you can overwrite the files in the dh folder.
- There is no currently firmware installer, so you'll have to get the files for firmwares "magically" :P
- Todo:
- - 2.71 direct flash (no ms emulation).
- Currently not available, because devhook msreboot.bin destroys the "unsign check" that reboot.bin does to the files of flash.
- - Port the installer to 2.71
- Instructions
- - You need Homebrew Enabler for 2.71 revision B (minimum) to run this port.
- - Get the files to emulate firmwares yourself.
- - Run the pbp with the title "Devhook 0.4X launcher for 2.71". The 1.50 launcher is also included because in the emulated 1.50 you can launch it.
- Note: only 1.50 and 2.71 have been tested.
- When going from firmware 2.71 to 1.50, you will get the error "Couldn't start game".
- Don't worry, this is normal and it is done in purpose as a current temporal solution for reboot.bin parameters being differents in both firmwares.
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原理是在2.71的固件上，模拟1.5的环境，然后，剩下的就不用说了。现在的引导程序还有一点点问题，有十分之一的机率会死机。但是没什么问题，总比变成板砖强吧。
具体的情况可以到各大PSP网张上看看，基本上现在都在讨论这个。
2.71而且不能降级的同学们终于有出头之日了，PSP1.5又该降价了吧。
PS：我什么时候才能有自己的PSP呢？
