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January 21, 2011 // 10:37 pm - Spanish PlayStation 3 developer Hermes has made available what he calls Hermes PS3 CFW, a PS3 Custom Firmware 3.41 version 1.0 Beta build which includes Payload 4, followed shortly by Hermes v4c Payload v1.01 which includes source code and details HERE.

Download: Hermes PS3 CFW 3.41 with Payload 4 / Hermes PS3 Custom Firmware 3.41 with Payload 4 (patched PUP) / Hermes PS3 Custom Firmware 3.41 with Payload 4 (patched PUP - Mirror #1) / Hermes PS3 Custom Firmware 3.41 with Payload 4 (patched PUP - Mirror #2) / Hermes PS3 Custom Firmware 3.41 with Payload 4 (patched PUP - Mirror #3) / Hermes PS3 Custom Firmware 3.41 with Payload 4 (patched PUP - Mirror #4) / Hermes PS3 Custom Firmware 3.41 with Payload 4 (patched PUP - Mirror #5)

PUP MD5: 2787b1294ca0cd7064be099c53f3421f
PUP SHA1: 7ac5f852f74d74231316c2bb8f4b7cb91b048318

To quote, roughly translated: Well, do not take any more, I have to sleep it took more than 20 hours in active!

  • CECHC04 (my model, 3 times with Different Changes, FAT 60GB)
  • CECHG04 (FAT)
  • CECHH04 (FAT 40GB)
  • CECHL04 (FAT 80 gb)
  • CECHE01 (NTSC)
  • CECH2001A (NTSC slim 120GB)
  • CECH2004A (slim)
  • CECH2504B (slim)
  • CECH2404A (slim)
  • CECH2004B (slim)

I see that the link has been posted "tomorrow" will open a thread and it will take all this data update the readme. For those wondering, where you put the PS3UPDAT.PUP. bat of the package, run the bat and you create a CFW341_PS3UPDAT.PUP

That gets into a pendrive as PS3/UPDATE/PS3UPDAT.PUP and if you are in 3.41 so you will have to start the restoration console (which is done by pressing the power and using a USB cable for connecting the controller and such)

Then, since the firm installed just install the pkg is included and run the application to load the payload. I think that having a 100% success in all these models, we can say that the patch is safe: if a console peta, be anything else but work, work.

From the included ReadMe File: Hermes CFW 3.41 version 1.0 (BETA)

WARNING! This modified firware is tested only by two persons (it is experimental!!!) with this models:

  • CECHC04 (my model, 3 times with different changes)
  • CECHG04 (from one friend)

I cannot be sure if it can brick others models (don't use this CFW if you have buy your console with 3.50+, you can brick it!)

I am not responsible if this CFW brick you console: I have taken all possible precautions using SHA1 hash to avoid errors building the firmware, etc, and other problems (i include too my own patch utility to be sure you apply the patch correctly).

Building the firmaware:

Put original PS3UPDAT.PUP (3.41 v2) with patch.bat and run patch.bat. It must create CFW341_PS3UPDAT.PUP.

Put CFW341_PS3UPDAT.PUP as PS3UPDAT.PUP in one pendrive (usb:/PS3/UPDATE/PS3UPDAT.PUP) and try to update normally from the device.

If it say "you have this version yet" try the restoration - recovery method (pressing POWER. Ask about this method if you don't know in the forums)


  • LV1 patch for undocumented v1_undocumented_function_114 (kudos for flukes1/graf_chokolo) 1 byte, don't worry!
  • LV2 peek/poke patch (original from psgroove)
  • vsh.self patch to enable .self (same patch as psgroove-hermes_v4B. To launch self requires the payload working)
  • nas_plugin.sprx patch to enable packages (same patch as psgroove-hermes_v4B. You can install PSL1GHT original packages but requires geohot make_self_npdrm without one payload working)
  • category_game.xml modified to enable packages (kudos for KaKaRoTo)

With this options PS3 works with Homebrew signed (use make_self_npdrm in the EBOOT.BIN).


Install payloadhv4.pkg and launch it to load the psgroove-hermes_v4B

NOTE: payload code is experimental. I need to work in the application and the payload to add news features. don't worry about the source code now: this is a beta test version yet, but the source code will soon available.

Hermes PS3 CFW - Custom Firmware 3.41 with Payload 4 Arrives

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#116 - xerxesrex - December 29, 2011 // 10:29 am
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thanks to oversoldier, i am currently downloading now. thanks again. cheers

Bravo, 3.41 work perfectly on my CECH2501A running UC3 now. thanks

#115 - oVERSoLDiER - December 26, 2011 // 4:06 pm
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The last link works fine!download|259dt|443880517|PS3_Custom_Firmware_v3.41_With_Payload_4_Version_1.0_Beta-Hermes.rar|175193.

#114 - xerxesrex - December 26, 2011 // 3:11 pm
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could any kind souls pls share the link to the CFW 3.41 again, all the original links are broken. thanks a million

#113 - severusx - February 23, 2011 // 4:10 pm
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Yes you can just use the patched PUP, no need to do it yourself. You can upgrade to CFW 3.55 in the future, but I would recommend that you return to OFW 3.41 before the upgrade just to be safe. Game compatibility is very good, using MultiMan the only game I haven't been able to make work is Split/Second.

#112 - nikola989 - February 23, 2011 // 3:58 pm
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on front page its already patched pup and i just install it and thats it? no need to patch it myself? thanks for reply..what about later updating to 3.55 cw?will there be any problem if i decide letter to update.

i guess game compatibility is same as with regular hermes v4?does new multiman supports 3.41 cfw?

i am not that big noob its just that my english is not very good and i am just double checking to make sure to not screw up something.

#111 - severusx - February 23, 2011 // 3:06 pm
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I haven't heard of any reported bricking. I have installed this on my Slim, my friend's Slim, and another Fat with BC. No problems whatsoever. You can revert to OFW 3.41 via the recovery menu if you so choose. And yes, the dongle is no longer needed.

#110 - nikola989 - February 23, 2011 // 10:19 am
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if i get it right i install csw that is on front page then pkg v1.01 and thats it? goodbye jb dongle? any known issues? freezings?bricking? i just wanna make double check before i try this.. can irevert back to official 3.41?do i lose some functions bd or anything?

#109 - racer0018 - February 21, 2011 // 10:57 pm
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You have to update to the real 3.55 and then use the recovery menu to update to the cfw. That is the way that i did it and it works great. Thanks

#108 - severusx - February 18, 2011 // 9:38 pm
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I doubt it, but just to be safe I would recommend that you go back to OFW 3.41 in recovery mode before upgrading to 3.55 CFW.

#107 - laz305 - February 18, 2011 // 7:41 pm
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anybody update to 3.55 CFW from this? If so, any complications?