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downgrade offical firmware
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pi2pi
Newbie
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19. September 2007 @ 19:22 _ Link to this message    Send private message to this user   
Hi all, a simply question. I intend to buy a PSP and crack the firmware myself.

Question can I:
1. buy a psp with offical firmware of any version.
2. Downgrade tht firmware with "lumines" UMD to ver 1.50
3. upgrade it to homebrew custom firmware 3.52-mm33.4

Please advice. Thank You.
AfterDawn Addict
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19. September 2007 @ 19:30 _ Link to this message    Send private message to this user   
If the firmware is 3.50 or below you can downgrade it with the Lumines downgrader.

Firmware between 2.81 - 3.03 can be downgraded via GTA Liberty City Stories.

Firmware 2.80 or lower can be downgraded with a downgrader that doesn't require a game exploit.

3.51 to 3.71 will require a Pandora battery unbricker/downgrader. This method will require you to have a PSP with 1.50 or custom firmware installed to create the Pandora Battery.

This message has been edited since posting. Last time this message was edited on 19. September 2007 @ 19:31

pi2pi
Newbie
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19. September 2007 @ 20:01 _ Link to this message    Send private message to this user   
thanks for the reply.

So can i double confirm.

- PSP official firmware ver3.5 and below can downgrade with Lumines UMD.
- PSP official firmware 2.8 requires only a software and NO umd to downgrade.

^_^" .... also, does all custom firmware require a phsycial UMD to be inside the psp to play iso/cso games?
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AfterDawn Addict
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19. September 2007 @ 22:07 _ Link to this message    Send private message to this user   
Thats correct.

Both OE and M33 CFW have NO UMD options. 3.52 M33-4 Sony NP9660 NO UMD is the most compatible driver for NO UMD loading for ISO/CSO files.
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