As some 2.71 PSP’s say hello to the world, others will be saying goodbye at the same time as a downgrader has been released just a few moments ago!!

For this one occasion, I grant you permission to jump on your computer’s desk; jumping up and down until you have broken your desk. The reason for such a command is that after you have done it you probably won’t care about the desk, as you have just read that a 2.71 downdater (downgrader) has now been made available! Yes, that’s right – all you 2.71 owners (who do not have a TA-082 motherboard) will be able to downgrade your PSP to firmware 1.50.

Using the recently exploited vulnerability in the tiff library, Dark_Alex (with the help of Mathieulh) has managed to create a 2.71 downdater. You are probably wondering how they managed to create this so fast, and the answer is simple. This 2.71 downdater is a port of the 2.50/2.60 downdater that was released slightly over 2 months ago. This new downdater, like the previous one, will not work with TA-082 PSP’s. However, if you do happen to have such a PSP – 0okm has been working on a softdown (no hardware changes required) method, so you are not left in the dust.

The procedure for installing, and successfully downgrading your PSP comprises of several steps in which one must be very careful. Since this downdgrader is a port of the 2.50/2.60 downdater – it functions the exact same way – just without the need for GTA. So, all the installation instructions may seem extremely familiar as they follow some of the exact same procedures as the original downdater. There were several bricked PSP's during testing but this latest version appears to be stable, but please remain cautious. As always, please follow the directions exactly as they appear. If you choose to proceed with this downgrader, use it at your own risk as bricking may occur.

If you are anxious to prepare for the downgrader (which you are, of course) check out our previous coverage of the 2.50/2.60 Downgrader as the installation process will most likely be nearly identical.

We will have the download and full details available in just a few short hours, so be sure to stay with QJ.NET and PSPUpdates for all the details! This post will be updated as more info comes streaming in!

1. Copy the folders downhelper and downhelper% from the folder 1.50 HELPER folder to /PSP/GAME/ in your memstick. (The DownHelper can be downloaded below)
   
2. Obtain the 1.50 update EBOOT and put it in /PSP/GAME/UPDATE in your memstick. You may find the 1.50 update in our download site here.
3. Initilize the downhelper program.
4. It will dump your flash and some files from the updater eboot to the memstick. (These files are illegal under US copyright laws, so please do not distribute them in the comments or on our forums)
5. After that, the program will exit. You can now delete the updater from /PSP/GAME/UPDATE
6. You'll notice that you have a new folder in the root of your memstick called "DOWNDATER". (See diagram on right for arrangement - click to enlarge)
   
7. That's the folder you'll have to send to a 2.71 owner to let him downgrade.

1. Download the Downgrader below and copy the files inside MS_ROOT to the root of your memory stick.
2. Wait for someone with 1.50 to pass you a folder called DOWNDATER and copy it to the root of your memstick.
3. It is recomended that you have the psp at more than 50% batteery and connected to AC
4. Go to the XMB Photo viewer.
   

At this point will one of the following things:

• You'll see a full red screen. This indicates that the downdater is doing its job. Wait for it to finish. When it finishes it will crash on purpose. Restart your PSP manually and you'll probably have a 1.50 if nothing went wrong.

• You don't see the red screen. This indicates that the downdater code has not started to execute. (even if the memstick blinks (or not), It doesn't matter! If the screen is not red, you can safely restart the PSP at this point and try again).
  

This happens because of instability in the tiff. Don't worry, just restart the PSP and keep trying until you reach the red screen of the downdater. The downdater code is NEVER executed partially. It's either executed totally or nothing. It depends on "luck" but usually the downdater will start to execute in a average of 1/10 times. Things that may increase the probabilities:

- A fresh formatted memory stick.

- A 32 MB memory stick (and fresh formatted)

• Will this work on 2.80?
  Some commenters keep insisting that this works on the 2.80. Some commenters keep insisting that it will brick your 2.80 if you try it. A word of sanity: until the developer says that it works on 2.80, it's probably a bad idea to try it on a 2.80.
• How do I turn off comments by unregistered users?
  FYI for Registered users: some of you have complained about all the spam (we're dealing with the worst of it but the comments are coming in faster than we can handle right now). You have a temporary solution: above the very first comment you see a drop-down menu next to the words "Unregistered Comments." Select "Hide" to hide all comments by unregistered users.

Download: [1.50 Downhelper Program]

Read: [Forum Discussion Thread]

Learn: [Homebrew FAQ's and Guides]

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