Ultimate Downgrader Thread
Articles By
QJ.NET - QuickJump Home - PlayStation Portable News - PSP Updates, dark_alex,
Hack a Day, and many of the talented people who helped create the programs we use
Disclaimers: 1. any downgrader has potential to brick your psp, so proceed with caution and at your own risk 2. always downgrade with a fully charged battery pack and the psp plugged into the ac adapter 3. only download the software from well known sites such as pspupdates.qj.net and psp-hacks.com 4. follow the directions carefully to avoid possible damage of your psp 5. check to see which hardware version you own before trying to downgrader by visiting this SITE 6. pspmod, QJ.NET - QuickJump Home - PlayStation Portable News - PSP Updates, and PSP Hacks · Hacks, PSP Downloads, Cracks, Mods, Homebrew, Utilities · Hack Sony Play Station Portable.com is not responsible if you harm your psp while attempting anything on this thread 7. for safety reasons, please use a reformated empty memory card when attempting to downgrade. ive heard 32mb is enough but if you have a larger one, use it 8. throughly read the README files that come with all software. most questions can be answered there instead of asking in this thread Summary:
2.00 requires the MPH downgrader
2.01 isnt downgradable, so update to either 2.60 or 2.71
2.50 and 2.60 are downgradable, but require Grand Theft Auto: Liberty City Stories
2.71 requires the "red screen" downgrader
2.80 is the latest downgrader
2.81-3.03 Can be downgrader with the use of an unpatched GTA"LCS (unpatched has 2.0 update on the disc, patched copies have 2.60 update on the disc)
3.03-3.50 Can be downgraded with a copy of Lumines (US or EU version of lumines only at this time, not JAP)
2.00 Downgrader (Old Method) Tutorial By. Elliot Phillips @ Hack-A-Day.com
Step 1: Download the downgrader from either
HERE, or
HERE. Then make sure you get a copy of the original 1.5 firmware upgrader.
HERE
Step 2: Connect your PSP to your computer via USB. On your memory stick, create a folder called UPDATE inside /PSP/GAME/ and place the EBOOT.PBP file from the 1.50 update inside this UPDATE folder.
Step 3: Unzip MPHDowngrader.zip. Drop overflow.tif into your /PSP/PHOTO/ folder. Put both h.bin and index.dat in the root of your Memory Stick.
Step 4: Disconnect your PSP from your computer and plug in the AC adapter.
Step 5: Navigate to Photo then Memory Stick via the PSP's menu system and start scrolling down through your photos until you reach the overflow.tif picture. You'll know you've hit it when everything freezes and you get a black screen with a bunch of white text output. If your PSP freezes without going to this black text screen, then hold the power button for about 10 seconds until the PSP shuts down, then hit the power button again to start it back up. Repeat this step until you get that black screen
Step 6: Don't panic. Hold the power button for about 10 seconds until the PSP powers off. Hit the power button again. Your PSP will start up, and if you navigate to your System Information, you'll discover that your PSP thinks it is running version 1.0 of the firmware. It isn't and you cannot run homebrew (yet).
Step 7: Navigate to Game-->Memory Stick, hit the X button, and navigate to the 1.5 updater. Make sure you have your PSP plugged in or the upgrade won't work. Click the X button and update like you normally would. At the end of the upgrade you will receive an error saying that the upgrade failed and to contact Sony. Don't panic. Ignore this and again force your PSP to power off and reboot.
Step 8: After the PSP reboots you will receive an error screen that is scary and confusing because it is in multiple languages. Don't panic. Find the language you can understand and read the corresponding line. It notes that your preferences are fragged and that you need only hit the O button to restore some default-ish settings. Hit the O button.
Step 9: The PSP will start back up and you will go through the initial setup like the day when you first bought your PSP. Do so and then go to the system info pane again, where you will see that you are rocking version 1.5. Run homebrew at will
2.00 and 2.01 Downgrader. GTA Not Required (Does NOT work on TA-082 Motherboards) Tutorial By. pspupdates.qj.net and noobz.eu
1. First you need eLoader 0.98 or later (get it from
Here .
2. Install eLoader, and make sure that it is working for you by loading some nice safe homebrew (e.g. Squarez).
3. Next unzip this downgrader package onto your memory stick. You should end up with the EBOOT.PBP file copied to /psp/game/201downgrader/EBOOT.PBP.
4. Also copy the v1.5 Update EBOOT to /psp/game/update/EBOOT.PBP.
5. Now run the downgrader via eLoader. Assuming that your PSP passes the safety checks, you should be given a menu of options.
6. To downgrade, you need to select the 'set to v1.00' option (the Circle button).
7. This will fake your PSP to version 1.00. Once you've completed the process, you can run the v1.5 Update EBOOT, directly from your PSP's Game menu.
8. Note that when the v1.5 Update is 99% complete, it will display an error message that it has 'failed - contact Sony customer support, error code FFFFFFFFF'.
9. This is OK! Just power off your PSP, and reboot it. You then get a blue screen, saying "Press O to reset your settings" in several languages. Press O, and your PSP reboots again - voila! You now have a v1.5 PSP.
10. Note that, before you install the 1.5 Update, your PSP is still really a v2.0 or v2.01 PSP, but it will claim to be v1.0. If you've changed your mind about downgrading, you can choose to rerun the downgrader, and restore your old version number, with either the Cross or Square button, as appropriate.
11. Alternatively, if you changed your mind about running the downgrader, you can just press Triangle to exit without changing anything.
Download:
Easy Downgrader 2.50/2.60 Downgrader (Does NOT work on ta-082 motherboards) Aslo Required GTA
Manual Method:
Instruction for the 1.50 user
-----------------------------
Downloads: 1.50 Helper 1.50 Update File
1) Copy the folders downhelper and downhelper% from the folder 1.50 HELPER folder to /PSP/GAME/ in your memstick.
2) Obtain the 1.50 updater and put it in /PSP/GAME/UPDATE in your memstick.
3) Init the downhelper program.
It will dump your flash and some files from the updater eboot to the memstick.
4) After that, the program will exit. You can now delete the updater from /PSP/GAME/UPDATE
5) You'll notice that you have a new folder in the root of your memstick called "DOWNDATER".
That's the folder you'll have to send to a 2.50/2.60 to let him test the downgrade.
Instructions for the 2.50/2.60 user
-----------------------------------
1) Copy the folder the DOWNGRADER/2.50/DOWNDATERTEST if you have 2.50
or DOWNGRADER/2.60/DOWNDATERTEST if you have 2.60 to /PSP/GAME/ in your memstick
2) Wait someone with 1.50 to pass you a folder called DOWNDATER and copy it to the root of your memstick.
3) Init gta and the eLoader
4) In the eLoader menu, choose the downdater test. WARNING: the program won't output any display and any warnings, it will init the downgrader process inmediatelly.
5) You'll see the your memstick flashing. That means that your psp is being flashed from the memstick.
You won't see any type of output in the screen (this is for safety). When the memstick finishes of flashing, WAIT at least a minute, and then reinit your psp by holding the power button.
6) That's all. If all went right, you'll have 1.50. If it went less good, you'll still have 2.50/2.60. If all went wrong, you'll have a bricked psp(except in the case you have the modchip) Remember that you have accepted that risk
- Users with TA-082 psp's shouldn try this. Also, it may be better that at the beginning, only users with a 2.50/2.60 NOT from factory (they updated from a below firmware)
This version also performs logging so be sure to have at least 16MB more on your memory stick before performing the downgrade.
Easy Downgrader Method By. Xtrusion
1. Download the FULL version of the 2.50/2.60 version
HERE
2. Connect the USB cable to your psp and to your computer
3. Activate the usb connection by scrolling to the left in the XMB and clicking Circle
4. for best results, backup your memory card and use a empty card for the downgrade
5. Run the .EXE you downloaded and follow the instructions