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241w ago - A few days ago Spanish PS3 developer JaicraB released PS3 USB Custom Firmware Loader v0.2, and today he updated it to version 0.3.

Download: PS3 USB Custom Firmware Loader v0.3

To quote from his site (linked above), roughly translated:

Here I bring the new version.

Improvements:

• Code optimization.
• Fixed USB port allocation.
• Fixed black screen.

Recommendations:

• Only have a USB MASS STORAGE USB connected to load FIRM LOADER.
• UPDATE NO FIRM while in USB mode LOADER.

Thanks for reporting bugs!

PS3 USB Custom Firmware Loader v0.3 Released by JaicraB!

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#46 - GrandpaHomer - 241w ago
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It very useful because instead of messing around with your flash in PS3 you can do just "soft mods" to it's copy in USB dive avoiding thus pemamently damaging your PS3 - useful for testing and playing around with zero danger to your PS3

#45 - ibuycheap - 241w ago
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How is that useful now? Sure its great on the psp where cfw exists but now this seems like a waste of time unless you plan on coding some cfw yourself.

#44 - cfwprophet - 241w ago
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You can boot a CFW for your ps3 with it. Now understand?

#43 - ibuycheap - 241w ago
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I don't get it. Why is this useful? Does it mean I can boot the ps3 without the usb thing anymore?

#42 - emsi - 241w ago
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Quote Originally Posted by GrandpaHomer View Post
The way the FW update works (independently if from USB or via Internet) is that it always first download or copy the update.pub file to internal hard drive, REBOOT the PS3 and only after that it will perform the update if the PUB file is valid and higher version than current in the flash. SO - there is no way with current tool to trick PS3 in downgrading this way as the JB and the "secondary" flash wouldn't be active after the reboot anymore.

Haha! It's a bit trickier. How the update works is as follows:

Once there is a new firmware downloaded it unpacks it and does the very same trick the Custom Firmware Loadrer does (that's why it is possible at all BTW): it starts it! Then it stats in "upgrade mode" which is flashing the firmware to the main flash.

What we need to do is: do the Custom Firmware tsick but in the "upgrade mode". Then the mail flash would be flashed with the firmware that we provide (either 3.15, custom or 3.50 but the later might not be wise anyway.

#41 - Yaddayadda - 241w ago
Yaddayadda's Avatar
Quote Originally Posted by GrandpaHomer View Post
The way the FW update works (independently if from USB or via Internet) is that it always first download or copy the update.pub file to internal hard drive, REBOOT the PS3 and only after that it will perform the update if the PUB file is valid and higher version than current in the flash. SO - there is no way with current tool to trick PS3 in downgrading this way as the JB and the "secondary" flash wouldn't be active after the reboot anymore.


Ok, so we would need a decrypted fw pub, but since PS3 only decrypts it before writing it to the nand AFTER resetting, we have no active jailbreak. Tricky!

#40 - BwE - 241w ago
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by customising the loaded firmware?

#39 - GrandpaHomer - 241w ago
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NOPE - you simply CAN'T - not by using only JB without CFW or changes ty flash.

#38 - BwE - 241w ago
BwE's Avatar
it might if you redirect it. if we can redirect drives and devflash we can keep going

time will tell.

#37 - GrandpaHomer - 241w ago
GrandpaHomer's Avatar
Quote Originally Posted by Yaddayadda View Post
Which part wouldnt work, loading a lower firmware or after loading it writing another one to the internal nand?


The way the FW update works (independently if from USB or via Internet) is that it always first download or copy the update.pub file to internal hard drive, REBOOT the PS3 and only after that it will perform the update if the PUB file is valid and higher version than current in the flash. SO - there is no way with current tool to trick PS3 in downgrading this way as the JB and the "secondary" flash wouldn't be active after the reboot anymore.