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Wednesday, July 05, 2006

Firmware v2.50 / v2.60 Downgrader

- Good news for those that upgraded their PSP a bit too far.
- This has been mostly developed by Dark_Alex, along with Mathieulh and Yoshihiro from SonyXTeam. They also want to give thanks to Hitchhikr for the exploit that made this all possible.
- Make sure you do not have a TA-082 PSP, since you could brick it. You'll need a mate with a v1.50 firmware PSP.

1.50 User Instructions

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 update and put it in /PSP/GAME/UPDATE in your memstick. You may find the 1.50 update in our download site here.
3. Init 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".
7. That's the folder you'll have to send to a 2.50/2.60 to let him test the downgrade.

2.50/2.60 User Instructions

1. Copy the folder the DOWNGRADER/2.50/DOWNDATERTEST if you have 2.50
2. or DOWNGRADER/2.60/DOWNDATERTEST if you have 2.60 to /PSP/GAME/ in your memstick
3. Wait for someone with 1.50 to pass you a folder called DOWNDATER and copy it to the root of your memstick.
4. Init GTA and the eLoader
5. 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 immediately.
6. You'll see that your memstick flashing. That means that your psp is being flashed from the memstick.
7. 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.
8. 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.
9. If your PSP is showing up as v2.01, this is fine. Just use Wab Version Changer and change it to v1.50

- If you see "Disc cannot be read" when you have a UMD in the drive, remove the battery from your PSP, (for up to 5 minutes.) That should fix it.

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