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Right on the heels of their 2.50/2.60 downgrader, Dark_Alex, Mathieulh, and Yoshihiro have just released a working 1.50 to 1.00 downgrader!
The downgrader uses a method similar to that of the 2.50/2.60 downgrader. At first it was considered impossible, as there was no IPL writing code for 1.00 (since it comes in the update EBOOT file). However, they discovered they could patch the file so that it would write the 1.00 IPL instead of the 1.50 IPL, thus making it possible to load 1.00!
We here at PSP3D.com have tested this, again, and can confirm that it is working.
Mr_Dank (one of the other downgrader testers) of Noobz.eu IRC channel has just released a video of the process and the successful downgrading of a firmware 1.50 PSP to 1.00:
A few details about the coming downgrader:
The downgrader must be run on a 1.50 PSP. It cannot work on any other version.
It currently does not automatically restart your PSP after the process finishes. This should be fixed when the program is released.
You may have to reset your PSP to system defaults after running the downgrader; it doesn't do this automatically.
Naturally, this downgrader will not work on TA-082 hardware PSPs, seeing how there's currently no way to get those down to 1.50 anyways.
Thus far, there have been zero bricks through this method. This isn't surprising; much more is known about kernel-mod execution in 1.50 than in 2.50 or 2.60.
Download the 1.50 To 1.00 Downgrader from PSP 3D here.
Password for the archive is: I_Use_It_At_My_Own_Risk
Update 1: You cannot run Devhook or ISO loaders under 1.00, apparently. This isn't because it's impossible; it's because they're specifically coded for 1.50. Also, you'll want to avoid programs such as Flashmod or X-Flash, since the files in flash0 under 1.00 are not the same as those under 1.50, and overwriting them with improper files could brick your PSP.
Update 2: The latest version of the MPH Firmware Loader also does no work. Again, this is because it's specifically coded for 1.50.
Update 3: Downgrader video added.
Update 4: Download added.
Last edited by Robert A. : 07-06-2006 at 08:37 AM.
holy shit monkey balls!!!!! first kernel on 2.6-2.6 then a downgrader to 1.5 now another one?!?!?!?!? these guys are going to be famous lmao we now have control of every firmware well except 1.51 1.52 2.01 2.7 and 2.71
Doubleposted Message Below:
Quote:
Originally Posted by mebizzle
sweet... but im just curious, wha t advantages does 1.00 have over 1.50 (besides not needing kexploit)
Doubleposted Message Below:
awesome...
you can update to a custom firmware which is very hard to make
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Click on the sig to check out their new single
Last edited by MTsol : 07-05-2006 at 08:59 PM.
Reason: Admin's Doublepost Preventer
what will these mean? so we will just be able to run like straight up eboots with this or what? like no % folder. and would we lose any features from 1.5 to 1.0? and would you be able to brick a 1.0 since there are no patches to go around? just wondering what would be so good about 1.0. and what type of things brick a 1.5? just the mph dg thing or can emus from the xmb brick it too?
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Dark_AleX is amazing! 2.00 > 2.60 > 1.50 > 2.00 > 1.50 - (my friend broke my analog stick, so I exchanged it with my extended gamecrazy warrenty and got a.....) - > 2.71 - (ta-082) - > 1.50 > 3.02 OE-A > 3.02 OE-B > 3.03 OE-A > 3.03 OE-A' >.....
what will these mean? so we will just be able to run like straight up eboots with this or what? like no % folder. and would we lose any features from 1.5 to 1.0? and would you be able to brick a 1.0 since there are no patches to go around? just wondering what would be so good about 1.0. and what type of things brick a 1.5? just the mph dg thing or can emus from the xmb brick it too?
anything that can mess with the psp's flash can brick it in every firmware even updating can brick
holy shit monkey balls!!!!! first kernel on 2.6-2.6 then a downgrader to 1.5 now another one?!?!?!?!? these guys are going to be famous lmao we now have control of every firmware well except 1.51 1.52 2.01 2.7 and 2.71
Doubleposted Message Below:
you can update to a custom firmware which is very hard to make
Linear Mode
