Cannot Downgrade PSP 3001 OFW 6.35


I have a PSP 3001 it had 6.20, but somehow it was updated to 6.30 without my knowing. Since then I update it with 6.35 in hopes to downgrade it to 6.20, but it does not work.

I've used the Downgrader 3.1 and 4.1, both do not work. On 3.1 it stops at the "Please wait..." and then shuts off 10 seconds later. The same thing happens to 4.1, except there is no text at all, just a black screen and then shuts off 10 seconds later.

Any help?
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