downgrade to FW custom version

[mgmjtech]

Sorry i am new to this PSP world. I have read the tutorial on [Only registered and activated users can see links. ] and got couple of questions.

Current version 3.11 with 1C1003.
Once i have downgraded to 1.50 (eboot file that i downloaded). Do I need to do anything else beside upgrade it straight to custom FW 3.90M33 update2? Do I need to upgrade 3.80 then 3.90?

[Gandalf]

After you run the Lumines part and downgrade to 1.50. You need to upgrade to 3.52m33 release, then go to 3.52m33-4. After the 3.52m33-4 you can go directly to any of the custom firmwares.

[mgmjtech]

I can't find 3.52m33-4? Also, when I am at 1.50, do I just upgrade to 3.52m33 through the normal procedure? copy pbp to update folder?

ok. completed all the steps. Now I am at 3.90m33-2. Loaded couple of ISO games but when i tried to start the game. It gave me an error.
"the game could not be started (80020321)" Please help!

[oldgit9]

either put a game umd in the drive and try again, or press "select" to enter the VSH menu. now scroll down to "umd iso mode" and press right on the d pad until it reads "m33 driver" or "sony NP9660". now either press "select" or scroll down to "exit" and press enter. try and run the game again.