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okay... now I have two things I tested: with the updates 1.52 and 1.50 I opened them, put the psar (I think was this.. kinda sleepy now) of the .52 in the folder of the .50, assembled in onde file again and put it on memory card. It appears as 1.52 update, I press O and it shows the psp animation. ...

This was a great find, and I am gonna start running some tests myself.

Good job.

I really don't know alot about hacking the PSP's hardware/software, or hacking in general; but I was testing that newly released downgrade file, which requires you to download the original 1.52 update, and then swap the memory card with the 1.50 downgrade file. That did not work, but the downgrade d...