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PSP Firmware Downgrade

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tone Proficient

tone

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Nea apo ton mathieulh:

 

Zeus asked me to post something about it, so here it is:

 

Dark_Alex is about to release a 2.71 custom firmware for non-TA-082 devices called 2.71 SE (SE stands for Special Edition)

 

The revision A will feature:

 

- 1.00/1.50 Eboot support (both kernel and user mode)

 

- 2.71 Eboot support (both kernel and user mode)

 

- run on 2.71 vsh

 

- Ability to run devhook (both 1.50 and 2.71 versions are fully compatible)

 

- Ability to run any 2.71 (and below UMDs)

 

- 1.00/1.50 prx executable support

 

- support both kxploited and unpatched eboots for 1.50 kernel

 

- support any 2.71 homebrews codded for HEN C

 

- Compatibility is 100% for 2.71 homebrews and approx 99% for 1.00/1.50 homebrews

 

How does it work ?

 

Both 1.50 and 2.71 kernel are flashed into flash0

it uses 1.50 kernel to bootstrap patched 2.71 firmware

 

How to flash it?

 

You will need to use the helper that will be provided to get a complying dump into a DXAR format, once you get it done properly use the flasher to "update" to the 2.71 SE-A

 

 

Pros and cons ? :

 

Pros : - Full 2.71 homebrew support

- Almost full 1.50 homebrews support (some homebrews like umdemu or xflash might not work properly with it, still so far all of the 1.50 homebrews I tried worked fine)

- Recovery menu

- Full Devhook support

- Access to all 2.71 features

- Native 2.71 UMD support

- 1.50 decrypted prx executable support

- Real no-kxploit embebed (thus 1.00 unpatched eboot support)

- have access to all 2.71 kernel features using 2.71 homebrews, such as GPS support or wpa support.

 

Only known con: takes about 1-2 second(s) more to load the firmware at startup

daviddavis Experienced

daviddavis

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Exo diavasi kai ego den ksero poses selides distixos omos den vrisko apantisi. To PSP mou exei firmware 2.01

1. Ti akrivos prepei na kano gia na pezo homebrew kai game backups?

2. Bori na pathi tipota to PSP giati diavasa oti bori na xalasi i mitriki?

Sas euxariso poli...

tone Proficient

tone

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Ο dark_alex εβγαλε το 2.71 SE - Revision A για τους 1.50:

 

This is a custom firmware that lets to have in a single flash the advantages of firmware 1.50 and 2.71 at the same time.

 

Homebrew can be run on both kernels' date=' the 1.50 one and the 2.71 one, letting almost all current homebrew to work on the 1.50 kernel, and 2.71 homebrew compatible with HEN C in the 2.71 kernel.

 

Note: the installer writes to FLASH0. I'm not responsable of any damage of what happens, since this software is provided free and without warranty. TA-082 users cannot use this because a 1.50 bootstrap is needed to boot the system patched.

 

At the moment, there is only installer for 1.50, although it could be easily ported to whatever firmware with kernel access such as 2.60 and 2.71, but at the moment i prefer not to doing it to avoid TA-082 using it and bricking their psp's.

 

Note that this package DOES NOT contain any illegal material. The user has to provide the 1.50 and 2.71 updaters pbp's to legally generate the DXAR file used for the flashing.

 

Read the readme, too long to copy it here.[/quote']

 

http://www.dark-alex.org

mikemoras69 Proficient

mikemoras69

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Diladi boro na valo auto to firmware gia na fortono homebrew kai na paizo ta kinourgia paixnidia xoris up-downgrade?

To exei dokimasi kanenas?

To downgrade ειναι υποχρεωτικό... Μετά κάνεις οτι αλλο θες.

actorius Experienced

actorius

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Δημοσ.

Quick question:

 

Για να τρέξει cso χρειάζεται ειδικός loader, ή είμαι οκ με το dev hook?

 

Ευχαριστώ.

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