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Guide: PS3 Slim CFW 3.55 to OFW 3.70 with 2 HDDs Fast Swap


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180w ago - Following up on the initial PS3 Slim 3.70 Downgrade and PS3 3.7x Downgrade for Slims and Fats with NOR Flash news, this weekend Italian PlayStation 3 hackers DiGiTaLAnGeL (linked above) have made available a guide to fast swap PS3 Slim CFW 3.55 to OFW 3.70 with 2 HDDs and ProgSkeet followed by a New Method - PS3 Downgrade v2 Supports all NOR Flash from TwoStone.

To quote, roughly translated: Today I'll write a tutorial to "fast-swap" between CFW 3.55 and OFW 3.70, using 2 HDDs... at the end of the tutorial, you'll be able to swap between the firmware just flashing a dump on your PS3 using Progskeet. (instead of downgrading and losing all data).

The first steps are not so easy, so take your time and go on, by the way, you must have some skill with Progskeet, and it must be 100% working on your console.

What we need:


We need 2 HDD because the NOR flashes stores some parts of the current FW on the HDD so we will need 2 HDDs, one is for 3.55, and one is for 3.70.. We will call those HDD "A" (for 3.70) and "B" (for 3.55) don't mix them up!

Starting with a PS3 Slim with OFW 3.70.

1. Plug in HDD "B", format and prepare it if it's required by the PS3 and you should have your 3.70 up and running.
2. DUMP your actual NOR and call it "original dump 3.70.bin"
3. Now flash your "downgrade.bin" (edited with the personal data found in "original dump 3.70.bin")
4. Turn on your PS3 and be sure that the PS3 is asking you to press the PS button (downgrade.bin flashed correctly )
5. Insert a 3.55 Downgrade dongle and enter factory/service mode.
6. Copy Lv2Diag.self by Jaicrab and the 3.55 NO CHECK UPDATE renamed as "PS3UPDAT.PUP" in the root of your USB Stick.
7. Plug in the USB Stick in the most-right USB port of your PS3 and wait for it to turn OFF.
8. Leave the factory mode using the other Lv2Diag.self
9. After the reboot, you need to configure and set up your system... now you have a fully working 3.55 CFW based on KMEAW "NO CHECK".
10. DUMP your actual NOR and call it "swap dump 3.55.bin"
11. Unplug HDD B and Plug in HDD A.
12. Turn on your PS3, plug in your USB Stick containing official 3.70 update and press start+select when asked.
13. When the PS3 reboots, check that the system is fully working and DUMP your actual NOR and call it "swap dump 3.70.bin".

NOW IT'S OVER! You should have "swap dump 3.55.bin" and "swap dump 3.70.bin" ... Now you just have to swap HDD and flash the corresponding dump:

  • HDD A = swap dump 3.70.bin
  • HDD B = swap dump 3.55.bin

WARNING: Do not install other CFW than the "NO CHECK" one... because it's used to make the "fast-swap" working... if you flash something different you will not be able to go between the 2 FWs. This CFW disable the Syscon checking at the startup... so it will not freeze or complain when the syscon says "3.70″ and your FW is 3.55

In case you wanna update your console with a future "3.80″ or-so firmware. Do not update your console when you are running 3.55 firmware! You have to go to "swap dump 3.70.bin" and then update as usual (XMB or recovery)... By the way, the downgrade is confirmed working only on 3.70... we haven't tested it on other FWs, you could lose the possibility to go back to 3.55!




Stay tuned for more PS3 Hacks and PS3 CFW news, follow us on Twitter, Facebook and drop by the PS3 Hacks and PS3 Custom Firmware Forums for the latest PlayStation 3 scene and PlayStation 4 scene updates and fresh homebrew PS3 Downloads. Enjoy!

Comments 95 Comments - Go to Forum Thread »

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#15 - damox - 181w ago
damox's Avatar
Quote Originally Posted by elser1 View Post
that's kool. does anyone know if this progskeet device will be made available soon?

i can't find it for sale in australia..

ozmodchips are selling them (and you can get the infectus too! - Melbourne based)

#14 - PS3 News - 181w ago
PS3 News's Avatar
I see a few places listed in AU here, worth a peek maybe: progskeet.com/distributors.php

#13 - elser1 - 181w ago
elser1's Avatar
that's kool. does anyone know if this progskeet device will be made available soon?

i can't find it for sale in australia..

#12 - PS3 News - 181w ago
PS3 News's Avatar
Today Italian site DiGiTaLAnGeL (linked above) reports that they have successfully downgraded a PS3 Slim 3.70 Firmware unit to 3.55 Kmeaw Custom Firmware, followed by a New Method - PS3 Downgrade v2 Supports all NOR Flash from TwoStone.

Similar to the PS3 Firmware 3.6x Downgrade via Infectus, this round they have downgraded a PlayStation 3 v3.70 Firmware console using ProgSkeet with the assistance of Dospiedra with a roughly translated PS3 3.7x Downgrade for Slims and Fats with NOR Flash now available.

To quote, roughly translated: The first downgrade to 3.70 on PS3 Slim 3:55, DiGiTaLAnGeL tested by us!

For the first time, we have been involved in something truly spectacular We were the first in the world to test the downgrade from 3.70 to 3:55 on a PS3 Slim (With flash memory, "NOR") using the ProgSkeet and patched some files provided by dospiedra, a famous Spanish coder already riding high for having discovered the method of going back to 3.55/3.41 with the PS3 (FAT flash memory "NAND").

After several attempts, in collaboration with dospiedra, we got to go back from 3.70 to 3:55, enter the factory mode with a simple key to jailbreak, rifleshare a modified version of 3:55 to prevent the SYSCON (the registry in between downgrades) was consulted during the downgrade and now we are happily at 3:55 KMEAW!

With this version of moddata 3:55, you can perform a memory dump today and you can switch on the fly from 3:55 to 3.70 without having to do this all the time-consuming process: using progskeet fact you can go straight to 3.70 changed to 3:55!

Dospiedra said it will release details on the patches applied to the NOR and the update file as soon as possible.

New life for those who arrived too late to enjoy the benefits of the 3:55?





More PlayStation 3 News...

#11 - XSamurai - 187w ago
XSamurai's Avatar
So is there any other difference between the slim and the phat then the size of the nand?

Think I read in the past that the smaller nand versions have parts of their firmware stored on hdd. So is it now just about to adapt it to the smaller nand size or will we get in trouble cause of the external storage of some part of the fw on hdd?

If you got any infos about that fact, pls let me know!

#10 - spawnofjago - 187w ago
spawnofjago's Avatar
elser he will not release keys he has. Remember Geo did this and look what it got him. Besides any related info will be released anon but the keys are there!

#9 - aamir007 - 187w ago
aamir007's Avatar
This is great news and excellent work, at least you can downgrade but only for the skilled ones. Hopefully it'll lead to more soon.

#8 - elser1 - 187w ago
elser1's Avatar
if he can do all that why hasn't he gotten 3.6+ keys.. maybe hes not gonna release them.

#7 - CJPC - 187w ago
CJPC's Avatar
Oh yeah - soldering all of those wires can be quite "fun", it should only be for the experienced user, if you think you want to give it a go - buy a broken board off ebay, and try soldering the 32 or so wires to it, if you did a good job, then give it an actual try. Then again, if your PS3 is bricked, you really have nothing to lose!

#6 - TheShroomster - 187w ago
TheShroomster's Avatar
no way i'm gonna try it. i have ps3 on OFW for online and one on 3.55 Kmeaw just curious if this could lead to a downgrader or even a way to customize 3.6x+ firmwares.

 

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