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[Downgrade] Can u help me?
[Downgrade] Can u help me? –
Hi to everybody.
I'm Mino , nice to meet you.
I have a ps3 slim - chech-2504b with latest firmware , 4.46 .
Can i downgrade to native firmware or to 3.55?
I'm looking right here. SKU Models - PS3 Development Wiki How many Gb do you have? It's very confusing how many downgradeable praxis your console have.
#1 - You will not downgrade it at all without a hardware flasher.
#2 depends on if it was built in 2010 or 2011. This date can be found on the same sticker you found the model number on. If it was 2011 then you are probably sol on downgrading.
You can also use the following link to check the minimum version you can put on your PS3............
I would much rather go to my grave not needing my gun, than go there wishing I had it.
You should try to download the MinVerCheck.PUP -> http://psx-scene.com/forums/content/...eck-tool-1238/
Unpack it to a USB Stick, and rename it from *.PUP to UPDAT.PUP and run it on your PS3 from "Settings" -> "System Update" -> "Update via USB Storage".
I STRONGLY RECOMMEND YOU TO RUN THIS FIRST! As it'll save you a lot of stress in the long run.
NOTE: THIS WILL NOT ACTUALLY INSTALL ANYTHING! But, it will tell you what the base Firmware for that PS3 is.
If you are lucky it'll read back as 3.40, or 3.50. If on the other hand it reads out as 3.60. Well your just SOL as CFW goes.
Sadly you have One of the trickiest PS3s to say One way or the other as S0NY started modifying the security on the PS3, just round the time the 25xx's got released. The only safe PS3, are ALL the Phats (NAND or NOR), and the 20xx, 21xx, & 251x Slims. The 30xx (Slim), and the 40xx (Super Slim) can NOT be downgraded with any currently known method.
Again anything you might have seen or heard on YouTube about being able to downgrade ANY PS3. Is a load of bull5h!t. From People looking to scam you. If such a miracle did happen, then it would have been reported here first!
If your attempt proves for not, you still might have a way to have some of the benefits of CFW via a ODE Addon. ODE = Optical Disc Emulators. From Team Cobra and Team E3.
!! i can install 3.40 or later firmware. Ok , how can donwgrade?
sorry but i 'dont understand
I take it you ran the MinVerCheck then?
Originally Posted by ll30ss
Then it seem that you're in luck then... IIRC you had a CECH-25xx Slim right?!
Your best, and simplest choice would be the E3 standard Edition (ca~60.00€(EUR) to $80.00(USD)) This has everything you need to dump & patch your firmware in order for you downgrade your PS3. You just need to strip your PS3 down, (So you'll need to get some new Thermal Paste too!) replace the HDD with the E3 Board and set the NOR Clip on the Chip. Once you have a good dump (as shown in the Howtos and Wiki (see link below), you can rebox your E3 and, then rebuild your PS3.
The Limited Edition E3 (ca~80.00€ to $100.00(USD)) also comes with an E-SATA Dock that would allow you to use a Second HDD to quickly dual-boot between CFW and OFW Firmwares. In this instance you'd just leave the E3 NOR Clip in place and proceed to rebuild your PS3. You need to update the E3 with a Dual Boot Firmware, and from then on you just need to set both the Switch to either CFW / OFW, and make sure that the proper HDD has also been switched. You can save yourself a bit of Cash and go with the Standard Edition for now. As you can use almost any E-SATA Dock latter on, to do this same job for you. Or perhaps you already have an E-SATA Dock?
This Howto has been posted 'round the Web, and is highly regarded I don't think you'll find a better One. It goes though everything you need to know about the tear down and the process of actually getting a dump. In this Link you'll also find embedded links back to the PS3Dev Wiki. You should spend a few days reading those Pages, AND REREADING those Pages! This is what I used to do my own PS3 with and, its as concessive a Howto as you'll ever find on the Web.
http://psx-scene.com/forums/f263/ult...98/#post988671 (The Ultimate Fool Proof Guide - PS3 Hardware Downgrading)
Prepare to spend a lot of time sifting between this Site, and your Dump! Thankfully you only need to do so Once!
PLEASE USE COMMON SENSE AND BE SURE TO BACK UP YOUR DUMP TO A SAFE OFF SITE LOCATION With luck you'll never need it. If on the other hand you ever run into a situation where your PS3 becomes "bricked". This Dump could save your life!
Validating flash dumps - PS3 Development Wiki
I would like to note that it could have just been me, but when I did this about a Month ago on my CECH 21xx. Which was on OFW4.40 at the time. My Dump did NOT actually match up with what the PS3Dev Wiki said it should have. In the Howto and Wiki the first thing they tell you to check when checking your Dump is the Statistics. I don't know when the wiki was written presumably way before OFW4.40. But, where I was expecting to find "00" to have a statistical value of "18.24%" (according to the Wiki) I was only getting "18.23%", this did give me a WARRINING when using BwE NOR Validator v1.31. I googled for that error it seemed to be well known at the time, and could be ignored. (THIS WAS MY BIGGEST HEADACHE with the downgrade process... YOU DO NOT... Let me stress this YOU DO NOT WANT TO GET THIS WRONG! Or else you'll end up with a permanent PS3 shaped Doorstop. In any case I flashed that Firmware back. And like most of the reports I've read on the Web about this 18.24% / 18.23% Bug can probably be safely ignored.
One other thing do NOT expect your PS3 to be in CFW once you do manage to turn it back on. All you did up to that point was to patch the OFW to use CFW. You'll still need to download either the Rebug or, Rogero 3.55 Downgraders and then install them. In the case of Rogeros 3.55 Downgrader. You'll also need to download and install his 3.55 v3.7 Firmware, in order to update your PS3 to something like 4.46CFW. As this can't be done in the 3.55 Downgrader Firmware.