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PS3 4.21 LV2 Patcher is Now Available, Sign and Run Homebrew


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99w ago - Following up on the PS3 4.21 EBOOT Resigner SCETool Script, today I am releasing a PC tool called the PlayStation 3 4.21 LV2 Patcher.

Download: [Register or Login to view links] / [Register or Login to view links] (Mirror)

Basically what this does it disables lv2 from using the appldr to check homebrew. This will allow you to sign and run homebrew.

Just for a heads up. This has about no use to the average user because you need the lv2_kernel decrypted for this to work.

How to use:

  • Press the big button in the middle.
  • Located your file.
  • Open it and you're done.

Credits to KaKaRoTo for sharing the information.

Finally, those looking for some more PS3 4.21 CFW homebrew may wish to check out Comgenie's Awesome Filemanager v0.06 for PS3 4.21 CFW, BlackB0x FTP V1.2 for 4.21 CFW / ReActPSN Rogero Fix for 4.21 CFW and Several PS3 CFW 4.21 Homebrew Ports.




Stay tuned for more PS3 Hacks and PS3 CFW news, follow us on Twitter and be sure to drop by the PS3 Hacks and PS3 Custom Firmware Forums for the latest PlayStation 3 scene updates and homebrew releases!

Comments 234 Comments - Go to Forum Thread »

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PS3 News's Avatar
#9 - PS3 News - 144w ago
Today Naehrwert has released PS3 SCETool v0.0.4 for those interested.

Download: [Register or Login to view links]

From his Tweet (twitter.com/#!/naehrwert/status/145481343411830784) the changes are as follows:

scetool 0.0.4 [Register or Login to view links]

(added 32 bit ELF "unselfing")

isoldr_emulate [Register or Login to view links]


Bartholomy's Avatar
#8 - Bartholomy - 145w ago
Eidtool is what we need, rest is useless I think

PS3 News's Avatar
#7 - PS3 News - 145w ago
Below are some more updates from naehrwert for those following..

scetool 0.0.3 [Register or Login to view links]

output for vsh.self pastie.org/2958961


Added ELF64 support to scetool!

but I extended eidtool by some new functions

PS3 News's Avatar
#6 - PS3 News - 146w ago
Here is a follow-up from his blog today as well for those following: nwert.wordpress.com/2011/11/29/about-spu-channels-64-72-and-73/

If you are reversing the PS3′s isolated SPU modules, you will eventually notice channels 64, 72 and 73. Here are some C functions, that roughly describe how they work:

About SPU channels 64, 72 and 73



It seems that lv1ldr is storing it’s version into a special storage area.


And e.g. isoldr reads the version from the storage area and compares it to it’s own version. If the check fails, isoldr will just stop execution.


I wonder what else is stored in the area and how long the data in it persists, so my next idea is to code an isolated elf, that allows me to specify the value written to channel 64 and then dumps the data from channel 73.

Ezio's Avatar
#5 - Ezio - 146w ago
Friday is a new legal application developed by naehrwert to remarry bd drive.

shame he will never release the eid tool
Yeah, unfortunately he decided to not share his eid tool when it will be ready.

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