Is there a way to downgrade from firmware 3.4.2 ??

[Ruddicz]

It may be stupid, but i was thinking, if someone replace the nand flash chips from the ps3
with other nand flash chips that have lower firmware, will that work ?

that would of course require some soldering/de-soldering i guess.
but also if it was so easy some people would already done that ?

If you found 2 identical flash chips like that in your console (yes theres 2 unless you have slim) then you could remove them both, dump the data and directly write to replacement chips, and install. then you could use 'old' chips for exploit- and 'new' chips for newer firmware.

Now if the system also updates some other part of the system - blows efuses - resigns with new encryption- or locked itself down via the HV or some other part of the console, the old chips won't work any longer as the newer firmware would be required.

People did this with the Wii - installed a ZIF socket to switch NANDs around, it worked perfectly. purpose I believe was to utilize different region NANDS when the JAP version of smash bros came out? Then again wii protection is very weak in comparison to the PS3.

[SnoopDo2G]

@ Ruddicz, i'll go see my technician friend soon and make some tests...
he got all the tools and i will see if it's working, never know, thanks for the infos.
(btw there are 2 samsung ones i think)