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2.70 dowwwnggrade yesssssss
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16. July 2006 @ 11:31 _ Link to this message    Send private message to this user   
What exactly is a crc check. Is that something that looks for cracks in firmware?



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AfterDawn Addict
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16. July 2006 @ 11:39 _ Link to this message    Send private message to this user   

Senior Member
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16. July 2006 @ 21:24 _ Link to this message    Send private message to this user   
hmmm is it possible to temporarily disable this crc? Because that could be what's checking for something. Because sometimes when Spybot S&D doesn't dl something right, it says bad checksum... Sony could have programmed it to label anything that's unsigned as bad checksum. oh yeah and @svstang, it's okay thanks very much for apologizing, i really appreciate it.

This message has been edited since posting. Last time this message was edited on 16. July 2006 @ 21:40

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17. July 2006 @ 03:55 _ Link to this message    Send private message to this user   
ok on the note of a downgrader(just so you know i know nothing about coding and so on just an idea)
iv'e heard alot of people talking about a possible downgrader through the web broswer, but what i was thinking is something to do with the game sharing side of things, i recently saw a vid on youtube showing tekken dr being shared from a 1.5 to i think is a 2.6 via gamesharing

http://www.youtube.com/watch?v=nwGl7hChqcw

so does this mean that there could be a way to make homebrew that you can share from a 1.5 to a 2.XX???
or as i said a possibility for a downgrader???
just an idea(or a dream)
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17. July 2006 @ 06:15 _ Link to this message    Send private message to this user   
no downgrade will be possible thru the web browser.

you can't gameshare HOMEBREW.

It's a Pipe dream.

@ eternalis: I think we should pick up work again on our 2.71 emu just to show ourselves we could do it... Maybe it could end up being more stable than Booster's. Not that his isn't stable... erm.. gotta go...

*runs away*



(+[O_O]::)
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17. July 2006 @ 20:17 _ Link to this message    Send private message to this user   
guano what about the crc idea? Disableing that could provide a way to run homebrew. Maybe that's exactly what the tiff exploit did? disabled the crc so a lower update could be launched? just an idea
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18. July 2006 @ 03:14 _ Link to this message    Send private message to this user   
ok, so i looked on wiki, and basically, a CRC check in lowman's term is something that checks for errors on a pack of data.



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18. July 2006 @ 04:22 _ Link to this message    Send private message to this user   
maybee the crc check made it so we would get errors when we tryed to modify system updates.

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18. July 2006 @ 08:55 _ Link to this message    Send private message to this user   
!!!!!!!! a-HA!
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18. July 2006 @ 08:59 _ Link to this message    Send private message to this user   
kaz whats that post about , and hows the downgrader,
@ guano a new sig i see, nice ;)



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
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18. July 2006 @ 11:09 _ Link to this message    Send private message to this user   
@hodgins: I heard them talking about a Cycle Redundancy Check, which checks for bad or corrupted data. Maybe what the tiff exploit did was temporarily disable this CRC. And you could possibly disable this with HTML coding, meaning afterwards you could run a 1.50 firmware update. And the downgrade is going a bit slower. I'm getting to work on it with anatomic, who is helping me make the actual body of the swf, and we still need to get some resources, aka a 1.50 and a 2.60 psp to make a 2.70 firmware dump, or else we won't know which files to replace. All in all, it's a little bit of progress.
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18. July 2006 @ 11:12 _ Link to this message    Send private message to this user   
i could give you a 1.5 firmware dump



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
Senior Member
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18. July 2006 @ 22:04 _ Link to this message    Send private message to this user   
I have a 1.50. The 2.70 dumps are the ones that are hard to come by because there's no way to actually dump it.
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19. July 2006 @ 01:04 _ Link to this message    Send private message to this user   
if theres no way to get it then how were thay able to make a devhook for it? well even if its 2.71 aint it basicly the same?




4get psp's im on dat 360 now cha dig!!
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19. July 2006 @ 01:52 _ Link to this message    Send private message to this user   
but 2.71 has some security updates compared to 2.70 :(



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
Senior Member
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19. July 2006 @ 03:45 _ Link to this message    Send private message to this user   
I think you can only emulate 2.71 so its hard to find a 2.7 dump becuase no one uses it.

Senior Member
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19. July 2006 @ 07:32 _ Link to this message    Send private message to this user   
yeah thats what im saying if 2.71 is basicly the same why not try and work on that i mean how could they have emulated it if they wernt able to dump it? i dont know maybe im geting to ahead of my self sorry ya'll just brain storming here i cant wait till they can downgrade 2.7 or i might just trick this kid i know to trade his 2.6 he knows nothing about psp still has a 32mb card lol




4get psp's im on dat 360 now cha dig!!

This message has been edited since posting. Last time this message was edited on 19. July 2006 @ 07:34

AfterDawn Addict
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19. July 2006 @ 11:44 _ Link to this message    Send private message to this user   
LMAO.......not really. The kid is probably 10, and since he has a 2.6, no real point in buying a 2 gig stick. Cant beleive this thread is still rolling on, but by all means, keep going. Much better thread then the ones explaining how to use WinRAR :)


AfterDawn Addict
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19. July 2006 @ 12:03 _ Link to this message    Send private message to this user   
hey 'stang havent seen you on here for ages, where you been ? lol



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
Senior Member
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19. July 2006 @ 12:09 _ Link to this message    Send private message to this user   
I meant there is a way to decrypt the 2.70/2.71 ie. Dark_Alex's decrypter, but you can't run a dumping program to actually get the files from the bios. I don't think devhook actually uses the files from flash0 and flash1, but I might be wrong.
AfterDawn Addict
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19. July 2006 @ 13:25 _ Link to this message    Send private message to this user   
dev hook uses the flash files, and if im not mistaken there is an application that reveals the psp flash files when you plug it into the pc, ill find out the name off my friend and ill get back to you



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
AfterDawn Addict
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19. July 2006 @ 13:32 _ Link to this message    Send private message to this user   
@ hodgins:

stang got a mod position at some other site.

Earlier you mentioned you liked my sig; thanks, but which one? b/c today I changed it as many times as hex...

Look like the Censored eyes girl is the one I'm gonna stay w/.




(+[O_O]::)

This message has been edited since posting. Last time this message was edited on 19. July 2006 @ 13:32

AfterDawn Addict
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19. July 2006 @ 13:34 _ Link to this message    Send private message to this user   
well i like them all to be honest mate apart from that one where you copied vbaker lol, like i said before as long as you like it it doesnt matter lol



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
AfterDawn Addict
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19. July 2006 @ 13:40 _ Link to this message    Send private message to this user   
I know, dude. :) was just curious as to which one you were referring to.



(+[O_O]::)
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AfterDawn Addict
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19. July 2006 @ 13:40 _ Link to this message    Send private message to this user   
the one you got now is cool :)



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
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afterdawn.com > forums > consoles > sony psp - mod and firmware discussion > 2.70 dowwwnggrade yesssssss
 

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