Downgrade psp 5.01 to 5.00 m33

SOURCE: Downgrade PSP from 3.80

Don't listen to Natahan, Studguy17. Natahan doesn't understand that you are trying to unbrick your psp and downgrade to firmware 1.5 where you can then upload and install custom firmware made by either m33, noobz or someone else that will allow you to play games downloaded off the internet for free. As for 3.80, I'm not quite sure if the proper files have been developed yet as 3.80 is a fairly recent firmware. I'm sure you have heard of the pandora battery and magic memory stick. If you haven't this won't make much sense so research it and read this again. The pandora battery in conjunction with the magic memory stick(mms) is used to unbrick your psp slim(psp 3000). In this case there are files that are created for us to place on our mms to match the firmware we are trying to downgrade. Once the appropriate files have been released for 3.80 most google searches will come up with it. Once downgraded, you'll then want to update it with custom firmware provided by hacking teams like m33. This is so you can still enjoys the fruits of Sony's updates and still play your free games. Firmware update files with names like 3.71m33 or 3.50m33 have nothing to do with the process of downgrading your psp they come into play after the downgrade is complete.

Tip: If you are frequenting any psp hacking related forums, pay attention to the names of the hackers being mentioned and google them to see of they have any of their own websites with firmware updates on them.

SOURCE: how can i downgrade my psp 4.05 to 3.80 m33-5

my psp is update to 4.05 but my game cannot play and see?
what i can do to roll back my previous version?

SOURCE: how to downgrade psp version 6.00? I cant download

yes,you can downgrade thank god because if you were model 3000 it is hard to downgrade yourself 1,go to a sony provider in your country and buy a original slim battery then you can make a pandora battery and magic memory stick there are plenty of videos in youtube about this in youtube and google or you can buy the pandora battery and magic memroy stick from here by not risking anything(accepts paypal) http://pandorabatt.blogspot.com/

SOURCE: how to downgrade psp 1001 from ofw 6.20 to cfw 5.00

Click on the link below and watch the video to learn how to downgrade your Sony PSP to cfw 5.00

http://www.youtube.com/watch?v=WP9OhtepUEM

SOURCE: How can I downgrade an OFW 6.21 PSP 3000? Or to

The best thing is to get and keep your repair guide for life so if something goes wrong in the future you can just review your guide and fix it.

Click here to download repair guide