Problems Downgrading

[TMNTPOWER]

I have a PSP with a 2.71FW and it's also a TA-082 unit, I was able to read both numbers. I'm trying to downgrade it to play emulators.

I have used two different downgraders
1. TA-082 downgrader by Dark-Alex (Hend).
2. 2.71 ta-082 ta-086 downgrader with (1.5 Enabler).

I always get one of two error messages.
1. Error Decrypting DATA.PSP
2. Extracting Prxs. Wrong PDP File.
Then it restarts.

Did I miss a step. I have read the guides to the letter. Please help me out

[dylandangles]

Have you tried re-downloading the official updates? They might be corrupted.

[TMNTPOWER]

I downloaded the EBoot file from several places several times, the size is 13.2MB or 13,575 KB. The Path of the file on the PSP is L:\PSP\GAME\UPDATE\UPDATE.PBP

[dylandangles]

Hmm...

Honestly I have no idea what you could be doing wrong. I've never seen this error before and I've downgraded more Psp's than i can remember.

If all else fails you can update to 2.80 and use the 2.80 downgrader by the noobz team. Its just as safe. It works basically the same way.

[TMNTPOWER]

Is 1.50 Firmware samething as 1.50 UPDATE?

Some of the downgrades come with a SRC Folder, where to put that folder?

[dylandangles]

Yes they are the same thing.

And thats the source code.

[TMNTPOWER]

Thanks I fixed the problem, it was with computer transfering the file to the psp.