[PSP] Custom Firmware POC by Dark_Alex
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DeMoN064




Posts: 1308

PostPosted: Sat, 15th Jul 2006 17:44    Post subject: [PSP] Custom Firmware POC by Dark_Alex
This is an interesting release, Its the first custom firmware for the PSP.

Download at

http://dax.psp-tuts.net/

Instructions:
Quote:
(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.


Features :

Quote:
- 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.


I've not gave it a go yet, But will do soon since there has been no brickings.
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Mutantius
VIP Member



Posts: 18594
Location: In Elektro looking for beans
PostPosted: Sat, 15th Jul 2006 17:47    Post subject:
Well the feature list doesnt look to impressive though the possibilities are endless here.


"Why don't you zip it, Zipfero?" - fraich3
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DeMoN064




Posts: 1308

PostPosted: Sat, 15th Jul 2006 17:51    Post subject:
Mutantius wrote:
Well the feature list doesnt look to impressive though the possibilities are endless here.


Well, Yeah. That's really what this is trying to show. IF, and thats a big IF the epsilon BIOS is real, then this could be flashed using a 1.50 PSP.

Even so, It could be done anyway since we can now create our own modules now.
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[sYn]
[Moderator] Elitist



Posts: 8374

PostPosted: Sun, 16th Jul 2006 15:57    Post subject:
Fantastic progress, but I would like to see more before I bother, this doesn't seem worth the effort of actually using yet.. here's hoping Dark_Alex brings us some nice updates in the next few days (as he normally does ; ))..
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Steve-O 2004




Posts: 2851

PostPosted: Fri, 21st Jul 2006 22:26    Post subject:
Seems quite good now... You can get a Custom Firmware which Autoboots to Devhook 0.45 Emulating 2.71 So its like having a pure 2.71 PSP but its actually still a 1.5 if you hold a button to cancel the autoboot Smile


George W Bush -

'...more and more of our imports are coming from overseas.'
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