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afterdawn.com > forums > consoles > sony psp - mod and firmware discussion > how do i downgrade from 3.90 m33 firmware to 1.50?
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how do i downgrade from 3.90 m33 firmware to 1.50?
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ivanidm
Account closed as per user's own request
_ 		11. July 2008 @ 15:23 _ Link to this message    Send private message to this user   
so a couple of months ago i got one of my friends to mod/customize/ hack idk watever you wanna call it the point is my psp was on a custom frimware, 3.90 m33 the game worked perfectly for a long time and the custom firmware was really cool. anyways about a week ago this message popped up that said "setting information is corrupted. press O button to repair and restore default settings.", my friend who modded it in the first place moved away so now im stuck and i dont know how to fix this problem he told me i need to recover it but im clueless on how to do this. if this thread has already been posted im sorry for wasting your time and repeating this. but i seriously need help i can access my recovery menu but i dont know wat to do after that so please help.
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January39
Member
_ 		12. July 2008 @ 10:53 _ Link to this message    Send private message to this user   
Have you pressed O?

That will reset flash1.

If you can enter recovery you can place a recovery folder onto your psp memory card that you can access through recovery. This will take you to 1.50 where you can update to M33.

Far easier method is to get a pandora battery and restore.
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ivanidm
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_ 		13. July 2008 @ 02:15 _ Link to this message    Send private message to this user   
i've pressed O and it just goes back to the same screen, how do i recover it back to 1.5 and how do i get a pandora's battery?
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pspwxp
Member
_ 		13. July 2008 @ 02:19 _ Link to this message    Send private message to this user   
have you got a FAT or a SLIM?
[ + quote]
[PSPWXP STATS]
PSP: [PSP N1001 (WHITE)][6.60 PRO-B10][8GB M2]
PS VITA: [PCH 1002][1.66][16GB MEMORY CARD]
3DS: [CTR 001 (BLACK)][3.0.0-6E][2GB SD][ACEKARD 2i]
ivanidm
Account closed as per user's own request
_ 		13. July 2008 @ 02:20 _ Link to this message    Send private message to this user   
how do i get a recovery folder into my psp memory card?
[ + quote]
pspwxp
Member
_ 		13. July 2008 @ 02:26 _ Link to this message    Send private message to this user   
turn your PSP on while holding R then it will take you to recovery menu, from there hit Toggle USB

EDIT
If you have to unbrick or Downgrade it goto this forum: http://forums.afterdawn.com/thread_view.cfm/569423
[ + quote]
[PSPWXP STATS]
PSP: [PSP N1001 (WHITE)][6.60 PRO-B10][8GB M2]
PS VITA: [PCH 1002][1.66][16GB MEMORY CARD]
3DS: [CTR 001 (BLACK)][3.0.0-6E][2GB SD][ACEKARD 2i]

This message has been edited since posting. Last time this message was edited on 13. July 2008 @ 02:29
ivanidm
Account closed as per user's own request
_ 		13. July 2008 @ 02:28 _ Link to this message    Send private message to this user   
i have a fat
[ + quote]
ivanidm
Account closed as per user's own request
_ 		13. July 2008 @ 02:32 _ Link to this message    Send private message to this user   
i know how to do that but how do i get the folder in the memory stick, where do i get the folder and how do i put it in just copy and paste?
[ + quote]
pspwxp
Member
_ 		13. July 2008 @ 02:32 _ Link to this message    Send private message to this user   
Originally posted by ivanidm:
 i have a fat
all right im not quite sure about 3.90 m33 but you may be able to download these Recovery files that send you back to 1.50 you should search first before taking my advice, it worked on my 3.71 m33-4 PSP but im not sure...
[ + quote]
[PSPWXP STATS]
PSP: [PSP N1001 (WHITE)][6.60 PRO-B10][8GB M2]
PS VITA: [PCH 1002][1.66][16GB MEMORY CARD]
3DS: [CTR 001 (BLACK)][3.0.0-6E][2GB SD][ACEKARD 2i]
pspwxp
Member
_ 		13. July 2008 @ 02:35 _ Link to this message    Send private message to this user   
Originally posted by ivanidm:
 i know how to do that but...
In most cases the PSP/GAME OR GAME150 folder

[ + quote]
[PSPWXP STATS]
PSP: [PSP N1001 (WHITE)][6.60 PRO-B10][8GB M2]
PS VITA: [PCH 1002][1.66][16GB MEMORY CARD]
3DS: [CTR 001 (BLACK)][3.0.0-6E][2GB SD][ACEKARD 2i]
ivanidm
Account closed as per user's own request
_ 		13. July 2008 @ 02:59 _ Link to this message    Send private message to this user   
do you have a link to a file i can use? and still do i just copy and paste it on the game folder and that's it?
[ + quote]
pspwxp
Member
_ 		13. July 2008 @ 03:17 _ Link to this message    Send private message to this user   
DONT BLAME ME IF THIS BRICKS UR PSP
http://rs11.rapidshare.com/files/6813157...ade_to_1.50.rar

Just put the files in the PSP/GAME folder and then run recovery at the recovery menu
[ + quote]
[PSPWXP STATS]
PSP: [PSP N1001 (WHITE)][6.60 PRO-B10][8GB M2]
PS VITA: [PCH 1002][1.66][16GB MEMORY CARD]
3DS: [CTR 001 (BLACK)][3.0.0-6E][2GB SD][ACEKARD 2i]
ivanidm
Account closed as per user's own request
_ 		13. July 2008 @ 03:22 _ Link to this message    Send private message to this user   
ok i wont blame you but if it does brick is there any way of fixing it?
[ + quote]
pspwxp
Member
_ 		13. July 2008 @ 03:29 _ Link to this message    Send private message to this user   
depends on normal or semi brick, but if its a semi then yes using pandora
[ + quote]
[PSPWXP STATS]
PSP: [PSP N1001 (WHITE)][6.60 PRO-B10][8GB M2]
PS VITA: [PCH 1002][1.66][16GB MEMORY CARD]
3DS: [CTR 001 (BLACK)][3.0.0-6E][2GB SD][ACEKARD 2i]
ivanidm
Account closed as per user's own request
_ 		13. July 2008 @ 03:31 _ Link to this message    Send private message to this user   
well i hope it works dude, and if it dont then im screwed cuz i dont know shit about pandora's battery or modding or hacking or any of this shit
[ + quote]
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ivanidm
Account closed as per user's own request
_ 		13. July 2008 @ 03:37 _ Link to this message    Send private message to this user   
dude it says right there that it's only for 3.71 so im not gonna risk it thanx alot though im gonna keep searching the threads for something
[ + quote]
afterdawn.com > forums > consoles > sony psp - mod and firmware discussion > how do i downgrade from 3.90 m33 firmware to 1.50?
 

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