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Tuesday 24.2.2026 / 05:51
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afterdawn.com > forums > consoles > sony psp - mod and firmware discussion > how i run iso on 2.50 firmware?
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How I run ISO on 2.50 firmware?
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Hazard7
Newbie
_ 		2. September 2006 @ 11:43 _ Link to this message    Send private message to this user   
Can anyone tell me how to play ISO on 2.50? Or do I have to downgrade? Please tell me how I play ISO games on 2.50 or less.

Thank You.
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hexitnow
AfterDawn Addict
_ 		2. September 2006 @ 11:45 _ Link to this message    Send private message to this user   
You cant play em on 2.5 you need to get the easy downgrader and an unpatched version of GTA:LCS. There is also a new downgrader u can use that is gta-less, you will need to upgrade to 2.71 for it to work tho. After you downgrade download devhook it can load iso's and emulate 2.71. all files can be found it http://www.psp-hacks.com There is a tutorial called Downgrading and Devhook and Compression. That tutorial will help you with devhook. But the 2,71 downgrader includes a tutorial on how to use it. and the easy downgrader walks you through the whole process. but like i said earlier u need an unpatched version of GTA:LCS for the EZ Downgrader.
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This message has been edited since posting. Last time this message was edited on 2. September 2006 @ 11:47
Hazard7
Newbie
_ 		2. September 2006 @ 16:03 _ Link to this message    Send private message to this user   
Your answer is very confusing to me. It's my first time to do this so I think you need to tell me in easy simple terms eg. step 2 step guide.
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hodgins91
AfterDawn Addict
_ 		2. September 2006 @ 16:08 _ Link to this message    Send private message to this user   
from hex :
1) you need to downgrade your psp to 1.5 to play iso's
2)theres two ways you can downgrade - 2.5 downgrader (requires grand theft auto umd)
-upgrade to 2.71 and downgrade (doesnt require gta)
3) before you can downgrade you need to check if you motherboard can be downgraded so check http://forums.afterdawn.com/thread_view.cfm/369035 with this guide to see if your motherboard is compatible and if you are doin the 2.5 downgrade, also check you have the right gta umd
4) if you want to do the gtaless method upgrade to 2.71 firstly in your PSP/GAME folder on your memory stick create a folder called UPDATE and download this file http://www.psp-hacks.com/file/525 and put it in there, then go to game on your psp and run the update :)
5)if you need more help come back and well give you more steps

Files :-
easy 2.5 downgrader:- http://www.psp-hacks.com/file/605
2.71 downgrader :- http://www.psp-hacks.com/file/753

phew lol
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My UMDDAXDUMPER tut!!http://forums.afterdawn.com/thread_view.cfm/360522
My IRSHELL 3.00 tut!! (well sort of :P) http://forums.afterdawn.com/thread_view.cfm/430653
What firmware does your game/movie need? see here http://forums.afterdawn.com/thread_view.cfm/431854

This message has been edited since posting. Last time this message was edited on 2. September 2006 @ 16:12
ibjaredu
Senior Member
_ 		2. September 2006 @ 16:11 _ Link to this message    Send private message to this user   
if you dont have GTA upgrade to 2.71 and downgrade with the TIFF lib exploit.
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Hazard7
Newbie
_ 		2. September 2006 @ 16:19 _ Link to this message    Send private message to this user   
If I downgrade it to 1.50, where can I fid a good UMD Loader to play IFO's?
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hodgins91
AfterDawn Addict
_ 		2. September 2006 @ 16:21 _ Link to this message    Send private message to this user   
well give you all the files required to load ISO's/umds,or you could search http://www.psp-hacks.com :)
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My UMDDAXDUMPER tut!!http://forums.afterdawn.com/thread_view.cfm/360522
My IRSHELL 3.00 tut!! (well sort of :P) http://forums.afterdawn.com/thread_view.cfm/430653
What firmware does your game/movie need? see here http://forums.afterdawn.com/thread_view.cfm/431854
Vampiro93
Senior Member
_ 		2. September 2006 @ 16:34 _ Link to this message    Send private message to this user   
just out of curiousity is there anyone working on a psp 2.5/2.6 downgrader without gta umd needed... itd be helpful :D
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hodgins91
AfterDawn Addict
_ 		2. September 2006 @ 16:37 _ Link to this message    Send private message to this user   
well its kinda pointless as now you can upgrade to 2.71 and downgrade without gta :)
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My UMDDAXDUMPER tut!!http://forums.afterdawn.com/thread_view.cfm/360522
My IRSHELL 3.00 tut!! (well sort of :P) http://forums.afterdawn.com/thread_view.cfm/430653
What firmware does your game/movie need? see here http://forums.afterdawn.com/thread_view.cfm/431854
Vampiro93
Senior Member
_ 		2. September 2006 @ 16:39 _ Link to this message    Send private message to this user   
yeah but its 2.5 downgrader is alot easier and of course its got less possibilities of bricking ur psp
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GARYKELLY
Member
_ 		2. September 2006 @ 20:33 _ Link to this message    Send private message to this user   
YEAH FOR SURE GOT A POINT VAMPIRO BETTER B SAFE THAN SORRY :))
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Thanks fanghi for the amazin sig !
1.50 psp
xbox 360
hexitnow
AfterDawn Addict
_ 		2. September 2006 @ 21:20 _ Link to this message    Send private message to this user   
actually the same bricking possibilites apply as the 2.71 downgrader is a port of the 2.5/2.6 downgrader.
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Vampiro93
Senior Member
_ 		3. September 2006 @ 02:01 _ Link to this message    Send private message to this user   
are u serious??? in that case ill be giving it a go :D
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Hazard7
Newbie
_ 		3. September 2006 @ 13:39 _ Link to this message    Send private message to this user   
I don't get the 2.71 downgrader thing. Do I need another psp with firmware 1.50 or I don't have to?

PS Is there a UK version of 2.71 update? Because there is US and JAP version only and I actually live in UK with a uk version PSP. D you think the uk version will work on us one?
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This message has been edited since posting. Last time this message was edited on 3. September 2006 @ 14:09
Hazard7
Newbie
_ 		3. September 2006 @ 15:05 _ Link to this message    Send private message to this user   
YAY! I use the 2.71 downgrader and it works! My psp is now 1.50! Thanks. Also you can use the US version of the 2.71 update to work on UK psp's.
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Vampiro93
Senior Member
_ 		3. September 2006 @ 15:19 _ Link to this message    Send private message to this user   
u can use the downgrader for worldwide psp
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afterdawn.com > forums > consoles > sony psp - mod and firmware discussion > how i run iso on 2.50 firmware?
 

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