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Custom Firmware - the proof of concept
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게임
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https://ohyung.net/75
(YMD: 06/07/16 03:52)
Dark_AleX 씨가 이번에 Custom Firmware - The proof of concept 발표해서 그거 좀 알아봤다...
솔직히 실행은 안해봤다.. ( 개념부족이라서.. )
Dark_AleX는 정말 멋진거 같다.
DAX ZISO LOADER,
Downdater Final for 2.50/2.60, Downdater 1.50->1.00,
UMD Dax Dumper Beta 0.2, 2.7X
PRX Decrypter for 2.6, 2.71 reboot decompress,
Custom Firmware - The proof of concept
모두 Dark_AleX씨가 발표한 프로그램.
일단 대충 훑어보니까...
1.5에서 1.0의 기능을 쓸수 있다는거...
예를들어 1.0의 PBP화일(홈브류등)들을 1.5에서 구동가능하게 만들어준다는거
또 Corrupted Icons를 없애주는거...
SCE로고없게 만들어주는거...
부팅하자마자 원하는 홈브류 띄워주는거...
모듈을 불러올수 있다는거 ( 스샷, USB등등 )
그러나 단점이라고 하자면 Flash에 직접 기록하는거라서 여러가지 문제점이 발생할수 있다는거...
( 이건 1.0 페이크 먹이고 1.5로 펌웨어 다시 깔면 해결된다고함. )
암튼... 역시 Dark_AleX 씨구나 하는 생각....
README 읽어보기
아놔썅! 또 영어네 닫자!
Custom Firmware - The proof of concept by Dark_AleX
There has been lately some discussion about if custom firmware in the psp are posible
(note: custom in the sense of writing our own executable code in the system, and not only data
like fonts, videos,...)
Even a lot of developers doubt that this is possible due to the protections in the psp.
Well, i'm here with this simple proof of concept to show the contrary :P
Instructions:
(Note: this thing only works for 1.50)
- Copy the PSP folder to the root of your memstick.
- Execute the program "Custom Firmware - The proof of concept"
It will write to the flash some executable files.
Now you are done.
This program has ben tested on my psp. However, as all programs that write to the flash, there is
always some risk of bricking the psp. Use it at your own risk.
IMPORTANT (to avoid confussion): the program includes a file called vshmain.prx. This file is
NOT of Sony, it comes from me, the source of everything is released.
The features of this custom firmware - proof of concept are:
- Execution of normal pbp's (1.00 ones, no-kxploited)
- Posibility of hiding corrupt icons. (note: by default it's not enabled, look at the file
/PSP/SYSTEM/config.txt to see how to enable it)
- Posibility of skipping the SCE logo at the startup. (and in this way avoid the annoying auto-execution
of the UMD). Like the previous one, this is not enabled by default.
- "Recovery mode:". If you keep R pressed while starting the psp, it will enter in "Recovery mode".
Recovery mode is not more than a simple application that will let you to use the usb, and execute a
program under ms0:/PSP/GAME/UPDATE/EBOOT.PBP, that could be, for example, a sony updater or the
1.50 -> 1.00 downdater.
This would allow to recover potential bricks caused by the writing of bad fonts/videos/sounds... to
the flash.
(Note that this wouldn't allow to recover critical things like the overwriting of critical prx's)
- Autoexecution of a program at the startup. See the configuration file at /PSP/SYSTEM/config.txt
to see how to use it.
Technical Details for Developers - Why and how this work.
Consider vshmain.prx like the executable of the firmware.
You should know that either in 1.00 or 1.50 we CANNOT execute our own prx's.
However, you should know that we can execute our own elf's :)
Just creating an elf, renaming it to vshmain.prx and flashing the file does the job :)
However, notice a VERY IMPORTANT thing. By default, static elf's created by the pspsdk are
linked to the address 0x08900000. This address is already taken by a prx of those that are loaded
before vshmain.prx.
It's necesary to relocate the elf to a different address not already taken.
This proof of concept use the address 0x09CD3000.
아놔썅! 또 영어네 닫자!
태그 :
PSP
,
CustomFirmware
| 이 포스트에 대한 이용규약 |
이 저작물은
크리에이티브 커먼즈 코리아 저작자표시 2.0 라이센스
에 따라 이용하실 수 있습니다.
This work is licensed under a
Creative Commons Attribution 2.0 Korea License
.
Top
| 이 글과 태그로 연관된 글 |
Dark_AleX's Downgrader For PSP 2.71... ( 113번글 )
- 06/09/02
CustomFirmware 구동완료. ( 76번글 )
- 06/07/17
UoOgraniser v0.90a For PSP ( 82번글 )
- 06/07/21
Custom Firmware 삭제방법 ( 79번글 )
- 06/07/19
PSP 2.0에서 1.50으로 다운그래이딩 ( 5번글 )
- 06/01/05
|
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