"Downgrader" to downgrade PSP firmware

Upgrading the firmware of PSP and upgrading it will make it possible to use various functions, but depending on the person I upgraded depending on various circumstances but I want to return! There is a demand. Where there is demand, there is always software that meets that desire.

So it seems that the latest version of "Downgrader" downgrading PSP firmware comes out. Details are as follows.
QJ.NET - PSP Updates - 24/7 Coverage of the Latest PSP News - QJ .NET - Quick Journal Home

I think that some people are worried about whether they can really downgrade or not, but I can do it. This is a proof movie.

YouTube - PSP version 2.6 Downgrader 0.5 Beta!
http://www.youtube.com/watch?v=0FMWhcuPaxg

Also, personnel reports have already been raised, and detailed motion reports will also be made.

Emu on PSP v1.50 + v 2.00
http://red.ribbon.to/~pspemu/index.html

Here is also helpful.

Downgrader - PSP Software
http://pspsoftware.ddo.jp/wiki/?Downgrader