PSP V2.0 to v1.5 Downgrade guide

[Kaiser]

Um.... if you read the guide fully you'll see the update is supposed to crap out at 99%. But when you restart the PSP you'll have a v1.5.

edit: I edited the guide so the 1.5 eboot is from a more reliable source. Also remember that updating from the memory card is much more safe then updating from a UMD. As one little scratch in the UMD can corrupt the update.

[Squidman]

Just one mor question before i try this.....is ur PSP a "PSP1001" (on the bar code thing on the bottom of the PSP) i know there's a "PSP1000" and "PSP1001". Or does this work with both?

[Kaiser]

The PSP that I have downgraded many times says PSP1001.

This downgrade works for all PSP's as stated in the guide.

[Squidman]

Wuld it matter if mi PSP came with the 1.51 firmware?

[Kaiser]

Wuld it matter if mi PSP came with the 1.51 firmware?

No just upgrade to 2.0 and then your good to go back down to 1.5.

[Squidman]

Praise the Lord, Kaiser Thnks much for teh help!, i got it done and it i'm at a glorious 1.5FW! Just 1 little thing, The thing to get rid of the corrupt icons doesn't work!.....so if u culd explain that wuld be nice.....

[halfpsp]

Hmm, downgrader has been idling for about an hour. Black screen and three rows of numbers. Should I start to worry? Take battery out or something? Boy, this is a PSP I really don't want to brick because it it my littlebrothers.
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Edit: Uh, okay sorry for "hasty" post. You might put in the guide, that if PSP doesn't shutdown then take battery off (including adapter). That worked for me. Thanks for the guide!
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Uhh, so when update is at 99% with fail message should it restart/shutoff automatically, or do I need to restart it manually. I've been sitting idle almost another hour thinking that it would restart automatically.

[Kaiser]

All right I fixed it up a bit. I don't think it can possibly be more clear now.

[Squidman]

The only help i need right now is getting rid of the corrupt icons, when i do the thing to get rid of them, the homebrew won't load, but when i just shove it on the PSP not careing about the corrupt icon, it works perfectly, just a tiny jam, but the corrupt icons r very annoying.

[FaytLeingod]

Thanks for the guide, I found it simple enough. This is just a housekeeping issue, can I get rid of all the files responsible for the downgrade (h.bin, index.dat.bak, etc)?