Hey, there's a 2.50 / 2.60 to 1.50 downgrader that works, people!
This is great news! Finally, and make sure you read the notes below, 2.50 and 2.60 users can downgrade to 1.50 to run the full gamut of homebrew software! I will be testing it today, but folks there are a lot of confirmed reports from reliable sources that this works.
Special thanks to Dark Alex and Yoshihiro for this downgrader. I forgive you for the bricking version earlier.
I will post links AFTER I have tested it. I'm sure you can find the download links elsewhere, but until I've tested it on a few PSPs, I won't post the links.
A few notes:
- This is a BETA - a.k.a. TEST version. 1.0 has not been released.
- This modifies your firmware - so there is a chance that your PSP can be BRICKED. That means it can break your PSP where it doesn't turn on anymore and it's no more useful than a brick (albeit a very expensive, pretty one). You downgrade at your own risk.
- The downgrader is for people who have UPGRADED to 2.50 or 2.60. Not store-bought 2.50 or 2.60 apparently.
- The downgrader is for people who NOT have a TA-082 board. This is the same requirement as the Undiluted Platinum mod-chip. You can see how to identify if you have a TA-082 board here.
- I am seeing people having issues running this on a 32 megabyte Memory Stick. Try to have a 1 gig or higher, just to make sure.
- You need to use the downgrader for the RIGHT firmware. There are SEPARATE 2.50 and 2.60 downgraders!
- This exploit runs through eLoader v0.9.7 using the Grand Theft Auto: Liberty City Stories exploit. It is NOT for 2.01 users.
- If you have a 2.00 PSP, use MPH's downgrader solution - I explain it in my book, and there are tutorials online.
- This will NOT work on 2.70 or 2.71 firmware (or higher).
- When you upgrade, there will be no data on the screen. The only indicator will be the flashing memory stick access light. It will run for about 70 seconds, maybe longer. When it stops flashing, wait two minutes and then power down your PSP by holding the power switch up until the PSP turns off. Do NOT remove your battery during this process! Also, make sure you have a full battery and are plugged in!
I will keep monitoring and will test this weekend!
Best,
-Auri