Post: Will this work as a downgrade method ?
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02-03-2011, 02:11 AM
#1
Czk
Gym leader
1- Take out the HDD of my ps3 ( 3.56 installed)
2- Put the 2.5'' HDD in my external HDD 2.5'' SATA enclosure case
3- Format the HDD-->the PS3's HDD now being a external HDD plugged to my computer
4- Put it back in my ps3 ( formated)
5- When the ps3 says it needs a firmware, update via USB stick to 3.55 OFW
6- Jailbreak with Kmeaw CFW
02-03-2011, 02:37 AM
#11
3arc
Meow.
Originally posted by Czk
Why ? since the HDD is formated.
My question is: How do the PS3 know that 3.56 is the actual firmware.
It has no way to know it unless:
-It connects on the internet to check ( which is not happening)
-It has previously saved on another physical chip ( that is not the HDD) inside the ps3 that 3.56 is the most up-to-date firmware
If the scenario number 2 is true, then it should be do-able to make a ''hack'' in order to erase/change information into that chip ( prob. flash memory) to make it believe that firmware X is the most up-to-date one.
Did not try yet because i have no 2.5'' HDD enclosure yet( cost around 5-15 bucks on ebay)
My question is: How do the PS3 know that 3.56 is the actual firmware.
It has no way to know it unless:
-It connects on the internet to check ( which is not happening)
-It has previously saved on another physical chip ( that is not the HDD) inside the ps3 that 3.56 is the most up-to-date firmware
If the scenario number 2 is true, then it should be do-able to make a ''hack'' in order to erase/change information into that chip ( prob. flash memory) to make it believe that firmware X is the most up-to-date one.
Did not try yet because i have no 2.5'' HDD enclosure yet( cost around 5-15 bucks on ebay)
If downgrading was as easy as swapping the drive, don't you think more people would have downgraded? Swapping the drive WILL NOT work. the actual firmware version is coded in the ROM, and cannot be modified.
02-03-2011, 02:39 AM
#12
steve-0
Bounty hunter
Originally posted by Czk
So, the nand chip is containing information about which firmware is the most up-to-date ?
Well, at least i tryed to find something lol
Well, at least i tryed to find something lol
there are 2 different types one is 16mb and the other is 256mb i think, i wouldnt even know where to begin on flashing one of those, no doubt some 1337 h/\><0rZ will come up with something
02-03-2011, 02:40 AM
#13
Czk
Gym leader
Originally posted by 3arc
If downgrading was as easy as swapping the drive, don't you think more people would have downgraded? Swapping the drive WILL NOT work. the actual firmware version is coded in the ROM, and cannot be modified.
What happens when you upgrade to 3.56 on HDD X and then you put HDD Y on 3.55 in the ps3 ?
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