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Heres Some Tutorials To Make Your Life alittle Easyer. (:

***using demo disc to update to 2.0***

To downgrade from 2.0 here is what you do.
You are going to need this file
http://www.psp-hacks.com/file/3 (http://www.psp-hacks.com/file/3)
and this file
http://www.psp-hacks.com/file/4
1. Take the h.dat and the index file and put them in your root folder(next to psp and umdemulator)
2. Take overflow.tiff and put it in your PSP/Photo Menu.
3. Make a new folder in your PSP/GAME CALLED UPDATE. Put the 1.5 upgrade in there.
4. Go to your photo menu, and press down. You should see a black screen with white letters. If not turn your psp off and try again. do not downgrade til you see the black screen with the white letters, this is a very important step
5.After you see the black screen with the white letters wait 30 seconds turn you psp off and turn it on again, Go to the game menu through your PSP and click the 1.5 update. make sure your psp is plugged into the charger. Do not remove the charger at anytime, Do not remove the battery, Don't do anything but press X to start the downgrade
Your psp is going to get to 99% and say that the update failed. This is perfectly normal. Wait 30 seconds after this happened and turn your psp off.
6. Turn your psp back on its going to say an error happened. This is normal as well. Just rebuild your psp like it instructs you to do.
7. You now have a 1.5 psp

***ANOTHER OPTION downgrade 2.0***

Downgrader http://files.pspupdates.qj.net/cgi-bin/cfiles.cgi?0,0,0,0,40,1409 1.50 Update EBOOT http://files.pspupdates.qj.net/cgi-bin/cfiles.cgi?0,0,0,0,40,1410
Method:
Create an UPDATE folder in PSP/GAME/ folder of your memory stick
- Copy EBOOT.PBP (update 1.50) in /PSP/GAME/UPDATE folder
- Unpack MPHDowngrader.zip
- Copy overflow.tif in your PSP/PHOTO/ folder of your memory stick
(make sure you have changed your background to frame_buffer.png as explained in the toc2rta exploit.)
- Copy h.bin in root of your memory stick
- Copy index.dat in root of your memory stick
- Plug the AC adaptor

What you do next is go into the Photo Menu on the PSP and it will show some jumbled text, which is normal. Wait about 30 seconds and then restart your PSP.

From there you will now have a new file in your PSP?s root directory called ms0:/index.dat.bak. In the next step you will go to you Game Menu, Then Memory Stick, and then Launch ?PSP Update ver 1.50.?

It will then ask you to downgrade and lead you along to installing. Here is where I got scared. It installed to 99% then errored. This is OK. Restart your PSP and reboot it. It will come up with another error which is OK as well. Restart it again and you will have PSP firmware version 1.50. Enjoy, and welcome to the world of legal homebrew. [dont know if this method works even you have pirated isos]

More Basic Info.

hi everybody win xp in psp really great

my Youtube video for it-http://www.youtube.com/watch?v=K1R9oAu6sTw

1.First extract the rar file
pic1 (http://www.geocities.com/murder_dods/1.JPG)

2.then copy the pspwxp folder to x:/psp/common in the psp by usb connection
pic2 (http://www.geocities.com/murder_dods/3.JPG)
pic3 (http://www.geocities.com/murder_dods/4.JPG)

3.then get to the internet browser under network in the psp.
pic4 (http://www.geocities.com/murder_dods/5.jpg)
pic5 (http://www.geocities.com/murder_dods/6.jpg)

4.then get to the adddress and enter file:/psp/common/pspwxp/index.htm then click enter
pic6 (http://www.geocities.com/murder_dods/7.jpg)

5.then wait a little bit and then press x to enter!
pic7 (http://www.geocities.com/murder_dods/8.jpg)

here is it win xp in psp!!!!
pic8 (http://www.geocities.com/murder_dods/10.jpg)
pic9 (http://www.geocities.com/murder_dods/11.jpg)

**TESTED IN FIRMWARE 2.71**
THOSE WHO HAVE 1.5 CAN EMULATE TO 2.71 BY DEV HOOK :)

Download:
http://files.filefront.com/pspWxpzip/;5511239;;/fileinfo.html

if link 4 pics not work here is it:
http://files.filefront.com/pspwxp_imagesrar/;5456101;;/fileinfo.html

http://i2.tinypic.com/1zy791u.jpg

Description:

Editorial Reviews
Download Description
Get ready to make the most of Sony's awesome entertainment device, and hacker's dream - the PSP. Hacking the PSP covers everything you need to know to: Transfer video and DVDs to your PSP Transfer audiobooks and text Hack the games you play every day (including using the PSP as an XBox game save device) Move your TiVo and ReplayTV shows to your PSP Convert your DVDs to run on your PSP Create your own quick-charge battery packs Learn how to program the PSP Repair your PSP Create your own hacks and run homebrew software Find all the online and offline resources you need And much more!


Link:
http://rapidshare.de/files/25799307/Hacking_PSP_-very_neat_and_illustrative_real_images.rar

My comment:

I suppose this will be helpful for some pirates out of us ...i dont own a PSP : (
I have glanced throgh this pdf..and it has very illustrative images(real life)..it guides you from very first step..(opening PSP )..lol and it also has types of srewdrives..The Depth of explaination achived by the author is awesome..any1 can tell this if they glance throgh this e-book



Have Fun :!

new link: Click here (http://rapidshare.com/files/89227993/Hacking_PSP_-very_neat_and_illustrative_real_images.rar.html)

This guide was written for the 0.44 version of Devhook and was updated as the 0.45 was released, so if you look for general 0.44 support you can find a good part here. However some version-specific subjects are no more covered because of the update, so in this case please refer to dedicated threads (eg mods installation and usage). Also because the 0.45 is quite new, some eventual issues may not be found yet so please report if you know something not covered about 0.45.

It's intended to sum up instructions, settings, FAQ and troubleshooting about devhook 0.45 that have been posted on several threads. It's a work in progress: first I gather infos, then I'll take care of presentation, please be indulgent about that. Also, I'd like to mention that infos here come mostly from members contributions, so constructive criticism and suggestions are welcome.

First I suppose that you have already installed and used some homebrews, because devhook is not the easiest to begin with. Devhook only works on a 1.5 version PSP.

A little introduction: Device hook was created and is maintained by Booster. Roughly it's an emulator. It emulates game ISO backups from Memory stick and fools PSP system to make it believing they are real UMDs. It also emulates the firmware from MS and fools the system to make it believing it uses the real one from Flash memory. The combination of both techniques allow to play from a 1.5 version PSP game backups and original UMDs, from 1.0 version to 2.71.


0 --- Summary ---

1. First part is about Devhook installation.
2. Second part is about Devhook settings.
3. Third part is about Devhook shortcuts.
4. Fourth part is about installation and troubleshooting with RunUMD.

1 --- Devhook installation ---

Download Devhook 0.44, or Devhook 0.45 then decompress the archive and copy the content of the MS_ROOT folder on the root of your memstick. Unsure about this ? See the FAQ, Q04.
Download the 2.71 update EBOOT.PBP from the Sony website or from any trustable location.
Open the EBOOT.PBP with "PBP Unpacker" or "PSP Brew" program and extract the DATA.PSAR.
Put the DATA.PSAR in the root of the memory stick.
Restore your PSP to the default settings (from System Settings under XMB).Run the included devhook installer on the psp, it will install FW files on MS0:\dh\271\ . When asked, answer yes about Flash1 installation.
From devhook 0.44 package copy again DH folder on the root of your memstick: it'll overwrite some text files.
Get a decompressed 2.71 reboot.bin, either find it with Google or you can also extract it with Dark_Alex 's 2.7X PRX Decrypter. Using this tool requires your PSP to be upgraded to 2.6 and downgraded back to 1.5 during the process, so make sure to read carefully Downdater (aka downgrader) Final for 2.50/2.60 before attempting to upgrade your PSP. Also see T02 about this.
Place reboot.bin in ms0:\dh\271\reboot.bin.
Check MS0:\dh\271\flash1\registry\ folder. Delete init.dat file if present. If you already have booted the 2.71 FW and windows can't delete it, try with IR Shell's file manager.
Create an ISO folder at the root of your Memstick, the game backups (ISO and CSO) have to go inside it for Devhook to use them.
Done, run devhook.
You may have to replace dh/271/flash1/registry/system.dreg and system.ireg with the ones from a lower FW install or with the ones from your PSP flash1 folder, in case the first boot of on an emulated firwmare fails by freezing at XMB.
Unsure about installation ? Most common problems should be covered in FAQ and Troubleshooting.
Still unsure about installation ? Full packs ready to use are available, use Google to find.

2 --- Devhook settings ---

Booting 1.5 and 1.0 version game backups in 1.50flash mode without a game UMD in drive
This is supposed to work for most version 1.50 games and below, as untouched ISOs, which can also be compressed in CSO format.You need to have the file reboot.bin (from a 1.5 dump, you can use the included firmware installer for this purpose) into dh\150F\ and also have the 0.45 version of Devhook for this to work. When your PSP has rebooted; just click on UMD game icon to run it. If you get an error, or if not icon appears, use MPH or RunUMD as external launcher.

UMD SELECT: select your ISO
UMD MOUNT: ISO NOUMD(1.50 only)
UMD VERSION: no change
FIRMWARE: 1.50F(NANDFlash)
CPU CLOCK: 222 Mhz (333 if experiencing lag but network functions will have issues, see Troubleshooting part)
BOOT SELECT: Reboot XMB
PL-ADR: 89000000 (in: OTHER/preload address menu)
Booting game backups directly from devhook through RunUMD without UMD in drive in 1.5flash mode
This is supposed to work for most version 2.50 games and below, as untouched ISOs, which can also be compressed in CSO format. You need to have the file reboot.bin (from a 1.5 dump, you can use the included firmware installer for this purpose) into dh\150F\ and also have the 0.45 version of Devhook for this to work.

UMD SELECT: select your ISO
UMD MOUNT: ISO NOUMD(1.50 only)
UMD VERSION: no change
FIRMWARE: 1.50F(NANDFlash)
CPU CLOCK: 222 Mhz (333 if experiencing lag but network functions will have issues, see Troubleshooting part)
BOOT SELECT: RunUMD(1.50 only)
PL-ADR: 89000000 (in: OTHER/preload address menu)
Booting game backups in 2.71 emulation with a game UMD in drive
This is supposed to work for all version 2.71 games and below, as untouched ISOs, which can also be compressed in CSO format. Also please note that many games only needs the UMD in drive only until they reached the start screen. If the game seems waiting (usually when loading stages) or sounds suddenly missing, put back the UMD in drive. Eg: Worms needs an UMD only to reach start screen and while loading the levels.

UMD SELECT: select your ISO
UMD MOUNT: ISO ANYUMD
UMD VERSION: no change
FIRMWARE: 2.71(MS hook)
CPU CLOCK: 222 Mhz (333 if experiencing lag but network functions will have issues, see Troubleshooting part)
BOOT SELECT: Reboot XMB
PL-ADR: 89000000 (in: OTHER/preload address menu)
Booting UMD games in 2.71 emulation
This is supposed to work for all 2.71 games and below, but has not been much tested yet.

UMD SELECT: UMD Disc
UMD MOUNT:UMD DISC
UMD VERSION: no change
FIRMWARE: 2.71(MS hook)
CPU CLOCK: 222 Mhz (333 if need of smoothness, but messes with networks functions, see Troubleshooting section)
BOOT SELECT: Reboot XMB
PL-ADR: 89000000 (in: OTHER/preload address menu)
Playing a audio/video UMD
This should play any audio/video UMD of the same region as your PSP.

UMD SELECT: UMD Disc
UMD MOUNT: UMD DISC
UMD VERSION: no change
FIRMWARE: 2.71(MS hook)
CPU CLOCK: 222 Mhz
BOOT SELECT: Reboot XMB
PL-ADR: 89000000 (in: OTHER/preload address menu)
Booting in 2.71 mode to use the Web browser, RSS ect
If you have stability issues with this mode or if you want to have the CPU clock set at 333Mhz, you can also install and use the 2.5 firmware which is more stable and has a proper 333Mhz fix (replace dh/250/flash0/wlan.prx with wlan.prx from the 2.0 firmware dump. You can obtain it with the firmware installer supplied with devhook and a 2.0 update EBOOT.

UMD SELECT: UMD Disc
UMD MOUNT: UMD DISC
UMD VERSION: no change
FIRMWARE: 2.71(MS hook) (or 2.50, see notes above)
CPU CLOCK: 222 Mhz
BOOT SELECT: Reboot XMB
PL-ADR: 89000000 (in: OTHER/preload address menu)

3 --- Devhook shortcuts ---
Ingame (2.71 mode) reboot to 1.5 mode XMB: hit HOME, highlight YES, hold L+R+UP and click YES while holding. Wait until the MS has flashed once then release buttons.
Quick ISO change under 2.71 XMB: HOME+L or HOME+R
CPU clock change under 2.71 XMB: HOME+SELECT

4 --- RunUMD installation and usage with Devhook ---

Installing RunUMD for Devhook usage
You can use either the original 00101a1 version or the 'faststart patched' one which boots quicker.
You need the EBOOT.PBP from the non-% folder to be placed in this folder: PSP/GAME/RunUMD/EBOOT.PBP (note: there are mods which change this path to hide the corrupted icon, please refer to their readme).
You also need an X folder in the root of your Memory stick. If you don't have one it can be created by running the original version of RunUMD but such folders have often a poor compatibility with other games. It's recommended to get a 'generic' X folder from an old fix/ripkit. As weird as it sounds some games need a copy of the x folder inside the x folder itself to boot with RunUMD.
Compatibility issues and troubleshooting related to RunUMD

- RunUMD makes some games unable to recognize and use the Memory stick as a savedata device. In this case, look for a fix in Meetjoeblack's dedicated thread or use 2.6 or 2.71 emulation mode.

- RunUMD makes some games unable to produce any sound. It's the same solutions as above: ripkit or 2.6 mode.

- The 'Ingame reboot to 1.5 XMB' shortcut seems to be broken in NOUMD RunUMD mode: it crashes the PSP just after returned to 1.5 XMB

- Normal exiting function with HOME button also seems broken here: crashes PSP.

- If you downgraded your PSP from 2.6 and RunUMD crashes at startup, see here.

- Some games don't work at all with this method (crash during gameplay): GTA.

Im going to show you step-by-step how to get video clips on to your PSP without having to spring for any additional software.

When you format a Memory Stick Duo or Pro Duo stick in your Sony PlayStation Portable (PSP), you will get a new PSP folder, with sub-folders for "game", "music", "photos", and "savedata". But nothing for videos? What's up with that? Well, it turns out that you need to put MPEG-4 video files in their own special folder, one that's not in the PSP directory, but in the main root directory of the Memory Stick.

Just create a new folder in the root directory named MP_ROOT, and then make a folder called 100MNV01 in there. So your .MP4 files should go into E:\MP_ROOT\100MNV01, where E:\ is the drive letter of your Memory Stick. You also need a PC, as the converter software does not work with Macs. This MP_ROOT directory structure is directly cribbed from Sony's UX/VZ Clie PDA series, which also plays MPEG-4 videos. Sony does offer up Image Converter 2.1, but they charge 1000 yen (around $10) for it. We're going to show you how to do it for free.

First, we need to download 3GP Converter, currently in version 0.22 (2.7MB).

http://www.nurs.or.jp/~calcium/3gpp/

Unzip the 3GPC .ZIP file into a directory of your choice, and run setup.exe. You may see a bunch of weird characters, but don't worry, it's set to Japanese by default. Scroll down to the bottom of the 3GP Converter Setup window and select the English radio button, select Customized: MP4, for PSP (Direct, renamed) the then press Apply. This is the setting for conversion of video files to MPEG-4 format that can be played by the PSP, and renamed so your PSP recognizes it (such as M4V31337.MP4). Unfortunately, the PSP currently won't recognize file names such as TheUsualSuspects.MP4 or TheOCSeason2Episode4.MP4.

Now, the 3GP Converter program window is open (if not, you can double-click the 3GP_Converter.exe program to run it). Click the Select button to choose where you want your converted PSP MP4 video files to reside. We just chose C:\3GP_Converter.

The program may ask you to install QuickTime Authoring before being able to convert your video files. A simple click of the Do It Now button will suffice.

The drop down box is what level quality setting you want your MP4 video to have. All outputted videos will have QVGA (320x240) resolution. You can choose from 15 or 29.97 frames per second, with 29.97 fps being a lot smoother. The third item listed in the quality settings is the video bitrate, the higher the bitrate, the better quality your video will turn out, with the highest quality being 1500kbps. The QB# settings appear to be variable bit rate (VBR) settings, where the converter will use a higher bitrate when necessary. The QB4 setting is the lowest quality VBR option, and QB10 the highest quality VBR. Next is the options for audio, choose between Mono or Stereo. The last bitrate is for your audio quality, you can choose from 32kbps (lower quality) to 128kbps (highest quality). The higher quality setting you choose, the slower it will be to convert.

Now drag whatever file you want to convert into MPEG-4 format into the blank area of the program window. Here we chose a Shark Tale trailer, originally in DivX Pro HD format, to convert with the 'QVGA/29.97fps/1500kbps Stereo/128kbps' setting, the highest quality setting that 3GP supports. When the program is finished converting the video into MP4 format, the program will rename the file to something like M4V04895.MP4.

Now setup the USB connection (or take out your Memory Stick Pro Duo and stick in a reader) on your PSP to copy the video files over. The correct folder name for videos is E:\MP_ROOT\100MNV01 (where E: is the drive letter of your PSP). Copy your .MP4 video(s) over (the .THM files that 3GP Converter creates are not necessary for playback), and then disconnect the PSP USB connection by pressing the X button.

Scroll over to Video in your PSP menu and select it by pressing the O button. It should list your converted MP4, with title, date, and length of video. Press O again and it will start playing.

There are four screen display modes, which you can choose from by pressing the triangle button. Scroll up to Screen Mode (2nd from left on the top row) and use the O button to scroll between Normal, Zoom, Full Screen, and Original modes. Normal is fine for regular 4:3 show viewing, Zoom gives you a closer view of the center of the video, Full Screen is perfect for 16:9 widescreen videos, and Original looks like it displays the video in a 320x240 pixel format.

With the codec and video expertise of our favorite geek friend, Craig, we tried to convert a video into MPEG-4 format with a 480x272 resolution, which is the native resolution of the PSP LCD. A 480x272 video file should be of higher quality than a stretched 320x240 pixel picture, but unfortunately, all of our attempts failed, no matter what we tried. We would always end up with Incompatible Data or Corrupted Data displayed on our PSP, though it played perfectly on a Windows box.

We came up with the theory that as the PSP uses the same video format as their Clies, and since those play videos just fine Sony didn't want to put in the extra work involved to get native 480x272 resolution MPEG-4 support. We also guessed that any potential UMD movie titles would be shown in the full 480x272 resolution (just as games are in shown in the native screen resolution), but that Sony didn't want to have videos from Memory Sticks (potentially copyright infringing) to be competing with the UMD discs which they would be making money from. In effect, they crippled the video playback capability from Memory Sticks. This is of course, just speculation, but this is Sony that we're talking about here.

Using a Dell Inspiron 8600 laptop with a 2 GHz Intel Pentium M processor with 2GB of RAM, we processed a few video files for fun. It took 3GP Converter 1:40 for a 18.5MB .WMV (of the Pistons/Pacers fight) to be converted into .MP4 format, with an output file size of 19.8MB for QVGA/29.97fps/1500kbps Stereo/128kbps, the highest quality available. It took just 48 seconds when we dropped down the quality level to QVGA/15fps/216kbps Mono/32kbps, with a resulting filesize of 3.2MB. There is a noticabe difference in quality, with the lower video bitrate resulting in annoying pixilation (which we hate). If you can spare the space, definitely go for the higher quality.

We still think the holy grail of a portable video player is drag and drop support for all major video formats without any transcoding necessary. Converting video (just like converting MP3s to ATRAC in previous Sony music offerings) is just a pain and should be avoided if at all possible. This current way to put videos on the PSP is also a somewhat of a burden, as the process is more for the hacker type (and we mean hacker as in tinkerer).

Sony has released Image Converter 2.1 (available for 1000yen), which has an iTunes-like drag and drop functionality, converting videos, renaming it, and putting it in the correct directory. We have heard a few reports of the software bloating a video file on conversion (turning a 20MB file into 30MB or bigger for no reason). We have no first-hand experience yet with the Sony software, but the 3GP Converter is quite adequate in its own right, with a host of encoding quality options.

The converted videos using the QVGA/29.97fps/QB10 Stereo/64kbps mode (we assume QB10 is the highest quality variable bitrate mode, as QB4 video was loads worse) looks good in terms of video, but since the audio bitrate is half of the highest quality video's 128kbps, you do notice the difference in audio quality, with the 64kbps audio being more hollow sounding and tinny. The filesize of the QB10 setting was 14.2MB, offering a bit of filesize saving over the 19.8MB of the 1500kbps video quality setting.

We successfully converted Windows Media Player (WMV), MPEG-1/2, DivX, and XviD formats into PSP-capable MP4. Of the various formats we tried, only a Quicktime MOV file failed to be converted by 3GP Converter.

Here's a quick guide to convert parts of a DVD into MPEG-4. You can convert movies into MP4 format, but unfortunately, you will not be able to get a full movie to fit onto a 512MB Memory Stick unless you are willing to take a serious hit on video quality. What can work well is converting TV or anime episodes (30 minute or hour shows) from DVD, but any converting of clips 30 minutes or more will take quite a bit of time. First, decide what part of the DVD you want converted by previewing it in a standalone player or in a Windows DVD player. Write down the corresponding chapters which contain the episode or section you want.

You will need DVD Decrypter. After installing the program and running it, we will need to set the program to IFO Mode, select Mode, then IFO Mode.

http://www.dvddecrypter.com

You will now see the Input window with VTS and PGC sections. Below that is a checklist of Chapters on the DVD. Check off the chapters you wrote down earlier and then click on Stream Processing. For simplicity, we checked the video stream, one audio stream, and one subtitle stream. Now that we have selected all that we want to rip from the DVD, click on the DVD disc to Hard Drive icon. The time for the ripping process will depend on the speed of your DVD-ROM, but in the meantime, grab Auto Gordian Knot.

http://www.free-codecs.com/download/AutoGK.htm

We will need Auto Gordian Knot (AG Knot) to convert DVD Decrypter's VOB file into AVI format. After installing the program and some associated programs, we can load it up. In Step 1, select file input, for Input File, put in the VOB file from DVD Decrypter. For output file, choose a filename and location to place it. Select the audio track from the drop down box, and choose subtitle if need. For the output size, choose Custom Size. We got a 166MB VOB file in our 4 minute, 30 second clip from Ali G's Indahouse from DVD Decrypter. So to be safe, we put in a 83MB output filesize, half the size of the original VOB, just to be safe. Then we clicked Advanced Settings and changed the Fixed Width to 320, as the PSP MPEG-4 video format is 320 pixels wide. Now click the Add Job button and the Start button (below Step 4). After conversion, use the above 3GP Converter guide to convert the AVI file from AG Knot into MP4.

Auto Gordian Knot turned the 4.5 minute clip into an 43.8MB AVI file. Using 3GP Converter, we converted the AVI file into a MPEG-4 file with a filesize of 54.7MB using the highest quality setting (QVGA/29.97fps/1500kbps Stereo/128kbps). Thus, if you had a 90 minute movie, and used the the same settings we did to convert to to AVI then to MP4, you would have the whole movie in 1100MB, which, unfortunately, is larger than the largest Memory Stick Duo currently available.

Using the lowest quality video setting (QVGA/15fps/216kbps Stereo/64kbps) produced a MP4 file of just 9.6MB, meaning 90 minutes of it would fit in around 192MB. Unfortunately, we can't stand the choppiness nor graininess. So we need to find a middle ground, the 29.97fps/768kbps mode produces a 30.2MB video (around 600MB for a 90 min movie). It's pretty good and the lowest quality that we would accept with our discerning eyes, but still too big to fit in a whole movie onto a 512MB stick, though it would fit fine for an hour long TV episode.

So we stepped it down a notch and tried 15fps and 384kbps, the highest video bitrate for 15fps. The converted MP4 was just 15MB, which would make a 90 minute movie 300MB, and thus fit on our 512MB Sandisk Duo card. The video is expectedly a bit choppy, but it's okay if you're not as nitpicky about video as we are. The audio quality (64kbps) is acceptable as well.

Depending on your video tastes and Memory Stick Duo capacity, you can squeeze an excellent hour of video (at 29.97fps) into a size under 512MB, or up to two hours using 15fps. Even though the conversion program converts files to 320x240 (a 4:3 screen size format), the PSP's screen modes can stretch that size out to a full widescreen while still looking good. We would have preferred a native 480x272 resolution support (which would have meant bigger MPEG-4 filesizes), the PSP still performs video brilliantly.