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afterdawn.com > forums > consoles > sony psp - mod and firmware discussion > can some pne tell me how to downgrade my psp 3.71 and to play iso files?
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can some pne tell me how to downgrade my psp 3.71 and to play iso files?
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Tito66
Junior Member
_ 		27. January 2008 @ 07:39 _ Link to this message    Send private message to this user   
i have a psp version 3.71 and i just brought it and i want to downgrade it to version 1.5 and i have another battery and also i have 2 memorey card 4gb and another 1 gb and i dont know how to downgrade my psp and as well i knew i cant use any iso files or play any game iso in psp until i downgrade my psp so can any one please help me to resolove my problem to tell me what i suppose to do but to be simple and clear for me yto understand because in fact i am not soo good in psp and i dont know many things regarding to software psp so i am waiting for any one to tell me how i can i play iso files in my psp and ow to downgrade it to 1.5

Thank you allll
[ + quote]
Feenix888
Member
_ 		27. January 2008 @ 09:55 _ Link to this message    Send private message to this user   
Wow - All in one breath.

You need to read This
[ + quote]
PsP#1 : 2.01>3.71M33-4>3.80 M33-5
PsP#2 (Slim) : 3.80>3.90M33-2 All hail the UPMS Stck
If you need a UPMS Stick go here and then go here :-) *As recommended by January39
larrylje
AfterDawn Addict
_ 		27. January 2008 @ 13:30 _ Link to this message    Send private message to this user   
@Feenix888

That guide will not help.

That is for updating custom firmware to a higher custom firmware.

@Tito66

Go HERE and use this guide if you know a friend or family member that has a custom firmware PSP. Ask them to help install custom firmware to the PSP.

Go HERE if you only have access to your Official firmware PSP.
[ + quote]
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