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afterdawn.com > forums > consoles > sony psp - mod and firmware discussion > how to downgrade a 3.73 to a 1.50 version?
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how to downgrade a 3.73 to a 1.50 version?
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didz04
Suspended due to non-functional email address
_ 		5. December 2007 @ 19:00 _ Link to this message    Send private message to this user   
hi,
my m8 has got a psp which is a 3.73, which he wants to downgrade it to a 1.50, so does anyone know any websites where i can download the files to do that and also maybe tell me what to do. Has anyone also got a like a 'EASY INSTALLER' where it would be straight away done without no blocking psp?
there is no writing in the psp on right side so it should be comapitible to do it.
thanks.
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se_p800
Junior Member
_ 		5. December 2007 @ 19:01 _ Link to this message    Send private message to this user   
Do downgrade a 3.73 PSP you NEED a pandoras battery.
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cee43ja1
AfterDawn Addict
_ 		5. December 2007 @ 19:02 _ Link to this message    Send private message to this user   
the ONLY way to downgrade 3.51+ firmware is with pandora's battery and magic memory stick.
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ps2: v7 scph-39001 - independence exploit - hdloader 0.8c - maxtor 300gb hdd
(+[__]%) psp slim ta-085v1: 6.60 PRO B10
wii (powered by bootmii/priiloader): 4.1u - d2x v10beta53-alt (base 56) - configurable usb loader v70r51/devolution r188 - wd scorpio black 7200rpm 320gig w/ ams venus ds2 enclosure

got a whole lot more to list . . .
se_p800
Junior Member
_ 		6. December 2007 @ 12:10 _ Link to this message    Send private message to this user   
Yeh thats just what i said....
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larrylje
AfterDawn Addict
_ 		6. December 2007 @ 12:49 _ Link to this message    Send private message to this user   
If the PSP is a SLIM it can not be downgraded to 1.50 firmware.

Either way you will need to use a Pandora Battery + Magic memory Stick. So you might as well just use the Universal Unbricker V3 to install 3.71 M33-2 custom firmware on the PSP no matter if it is a FAT or SLIM.

HERE is a guide on doing this. You will need a PSP that has custom firmware installed to create the Magic memory Stick + Pandora battery.
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This message has been edited since posting. Last time this message was edited on 6. December 2007 @ 12:52
tccompwiz
Account closed as per user's own request
_ 		6. December 2007 @ 13:36 _ Link to this message    Send private message to this user   
Is in in no way possible to pandora your battery without a already modded psp or 1.5
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drakex
Senior Member

2 product reviews
_ 		6. December 2007 @ 13:37 _ Link to this message    Send private message to this user   
STOP answering the same question over and over again! All of you are spamming the same thread with the same answer the previous person said!
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PSP (+[__]%): 2.80 < 1.50 > 3.40OE-A > 3.71M33-4 > 3.80m33-5 > 3.90m33-3 > 4.01m33-2 + 8gb MSPD
PS3 HD 60GB: 1.33 > 1.90 > 2.01 > 2.17 - NO OS
Nintendo DS [+[__]%]: EZ Flash 5 Plus + 1GB MicroSD + EZFlash 3in1
Nintendo Wii: 3.2U + 1GB SD Card + WiiKey 1.9s
larrylje
AfterDawn Addict
_ 		6. December 2007 @ 13:47 _ Link to this message    Send private message to this user   
Originally posted by drakex:
 STOP answering the same question over and over again! All of you are spamming the same thread with the same answer the previous person said!
post edited and reported.
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This message has been edited since posting. Last time this message was edited on 6. December 2007 @ 13:53
tmbm
Member
_ 		6. December 2007 @ 13:48 _ Link to this message    Send private message to this user   
tcc, or custom
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tccompwiz
Account closed as per user's own request
_ 		6. December 2007 @ 14:18 _ Link to this message    Send private message to this user   
i wasnt answering anyone i am trying to ask a question and make sure there is absolutly no way to downgrade a fat with 3.73 w/o a pandora battery and i can not pandora my battery withought a 1.5 or custom fir psp, bc that is the only way possible to do it. right?
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larrylje
AfterDawn Addict
_ 		6. December 2007 @ 15:03 _ Link to this message    Send private message to this user   
Originally posted by tccompwiz:
 i wasnt answering anyone i am trying to ask a question and make sure there is absolutly no way to downgrade a fat with 3.73 w/o a pandora battery and i can not pandora my battery withought a 1.5 or custom fir psp, bc that is the only way possible to do it. right?
You can use an easy installer to create the Magic Memory Stick and Hardmod your PSP Battery.

Use this easy installer HERE to install the files you want on the Magic Memory Stick. Extract the file and select START to start the easy installer. When it gets to the part to select what type of Magic memory Stick you want choose option 1 (Original FAT Pandora menu) if you want to downgrade the PSP to 1.50 firmware. Choose option 4 (universal unbricker V3) if you want the Magic memory Stick to install directly to 3.71 M33-2.

When you are finished installing the files to the memory Stick Hardmod your battery using this site HERE.

Now place the Magic memory Stick in your PSP and place the Hardmodded battery into it and follow the on screen instructions.
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tccompwiz
Account closed as per user's own request
_ 		6. December 2007 @ 15:07 _ Link to this message    Send private message to this user   
I did this and it worked not exrta batery or psp needed. http://www.psp-hacks.com/forums/about111615.html&p=1
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tccompwiz
Account closed as per user's own request
_ 		6. December 2007 @ 16:43 _ Link to this message    Send private message to this user   
Thanks tha was amazing and for future notice you dont have to mod your battery you can just take it out. one more question did that file include the kernal addon and the update 2
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tccompwiz
Account closed as per user's own request
_ 		6. December 2007 @ 16:59 _ Link to this message    Send private message to this user   
I spoke to soon. it looked like it was doing evrything i ran all the way through the program but after it was finished nothing changed on the psp. did i do something wrong. and also none of the things in the games file on the ms workd all sayd the couldnt load
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larrylje
AfterDawn Addict
_ 		6. December 2007 @ 17:50 _ Link to this message    Send private message to this user   
The applications on the Memory Stick will not run because you have a Official Firmware PSP.

It sounds like you created the Magic Memory Stick properly. All you need to do is Hardmod or Softmod your Battery into a Pandora Battery (In order to softmod the battery you need a PSP running custom firmware. If you do not have a custom firmware PSP then Hardmod your battery).

Follow the directions I gave above. it isn't that complicated.
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This message has been edited since posting. Last time this message was edited on 6. December 2007 @ 17:51
didz04
Suspended due to non-functional email address
_ 		6. December 2007 @ 19:07 _ Link to this message    Send private message to this user   
thanks alot guys... ill have to c then init.
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pascua
Junior Member
_ 		19. January 2008 @ 06:27 _ Link to this message    Send private message to this user   
what is a magic memory stick
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hersh1
Newbie
_ 		25. January 2008 @ 04:14 _ Link to this message    Send private message to this user   
hey ya i cant follow this thing to well cause i dont kno where to put the file at, also ive tried a few places and when i open it and click the start. what ever it is it says first go to system setting and do something about memory stick format. every time i follow the instructions it doesnt do what it says. if i can get some help cause i have a game i bought(friend bought) but i cant get it on my psp cause the version is 3.73, it was a 2.0 version but my friend upgraded it without knowing about version restriction thing to illegal content. if i can maybe get some pictures of where to extract the file then how to do it it would help a bunch.

srry for such a long quest/comment but it is gay i cant get what i paid for.
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afterdawn.com > forums > consoles > sony psp - mod and firmware discussion > how to downgrade a 3.73 to a 1.50 version?
 

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