Post: Facts about downgrading from OFW 3.56
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02-07-2011, 11:56 PM
#1
Starek
Pokemon Trainer
Currently, There were countless method tried of doing it:
- Method with Restoring your System, and quickly going to Service Mode doesn't work.
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- Method of swaping flashdrives with different firmware doesn't work. It gets stuck usually at some point.
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- Method of bricking is also a fail (Envy_astro was making autobricker for OFW 3.56, but I don't know how it ended), because you can stuck in Service Mode forever.
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-Idea of using internal hard drive is also unsuccesfull, it works only for OFW lower than 3.56
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- Method with PS3Jig, which puts your PS3 into Factory/Service mode by using your PSP doesn't work either. It works only for OFW 3.55 and lower.
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User Musical-Phenix just send me a link to his video where he tested some of those methods.
As you can expect, they didn't worked for him either.
At this moment there is no CFW 3.56 yet.
You should also forget about any 3.56 CFW that you have found online. Especially, when they want you to take a "quick survey" to download your file. You can stay away from fakes like:
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and many more.
At this moment, there is NO 100% way to downgrade from OFW 3.56 to any older firmware..
You can pick more "pro" way trying to downgrade, read more here:
Originally posted by another user
Mathieulh: Twitter
About 3.56 if the updater/lv2diag application keyset revision is lower than 0x0D, lv2 will refuse to run it.
Mathieulh: the fail is the following anyway, decrypt your hdd cache partition /dev_hdd1 using the hdd decryption trick right after the 3.56+ updater starts (but before it updates) (just use the back switch), then replace the coreos package, with one you resigned which has 3.55 coreos but 3.56+ in info0 (or the value 0xA0 at offset 0x2C) then reencrypt the hdd partition and put the hdd back, because the
Mathieulh: update status flag will be set, the updater will start and flash the resigned 3.55 coreos package (the fail works because they haven't changed the packages signatures, not like they can)
Mathieulh: then you can use service mode again and flash whatever crap
Mathieulh: doesn't work on slims cause the hdd decryption trick is fixed there
Mathieulh: they btw can't fix it in the fat ones because it's hardware related
About 3.56 if the updater/lv2diag application keyset revision is lower than 0x0D, lv2 will refuse to run it.
Mathieulh: the fail is the following anyway, decrypt your hdd cache partition /dev_hdd1 using the hdd decryption trick right after the 3.56+ updater starts (but before it updates) (just use the back switch), then replace the coreos package, with one you resigned which has 3.55 coreos but 3.56+ in info0 (or the value 0xA0 at offset 0x2C) then reencrypt the hdd partition and put the hdd back, because the
Mathieulh: update status flag will be set, the updater will start and flash the resigned 3.55 coreos package (the fail works because they haven't changed the packages signatures, not like they can)
Mathieulh: then you can use service mode again and flash whatever crap
Mathieulh: doesn't work on slims cause the hdd decryption trick is fixed there
Mathieulh: they btw can't fix it in the fat ones because it's hardware related
Source:
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Peace.
The following 15 users say thank you to Starek for this useful post:
02-08-2011, 12:01 AM
#2
The following 3 users say thank you to Janne for this useful post:
02-08-2011, 12:06 AM
#3
Starek
Pokemon Trainer
Originally posted by Ropponen
Yes, we already know that there is no way to downgrade from OFW 3.56 so what's the point of this thread?
Many new people don't look at older topics, so they are posting question and making theories about how to downgrade from 3.56. I've just made a quick sum up for what we already know, so no one will post thery that was written before.
I'm looking for a way to downgrade myself, and I'm reading many threads about similiar theories how to do it. I think that people should know what was already tested, before they start to make new ones ...
The following 2 users say thank you to Starek for this useful post:
02-08-2011, 12:46 AM
#5
Crustyclone
Bounty hunter
02-08-2011, 01:01 AM
#7
NDM-Dr0pSh0Ts
Error… Cat invasion!
02-08-2011, 01:06 AM
#8
Starek
Pokemon Trainer
Originally posted by Dr0pSh0Ts
whats the point in this thread its old news
Yeah, If you know it already. But belive me, people still will ask questions about everything you already know. So I thought I could give those lazy people a head start, so they don't have to read hundreds of posts to get the answer. Simple as that.
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