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i got a problem with downgrading from ps3ita 4.21 v2.2(DEX) to (3.55 DEX)

i used 3.55downgradePUP tried to installed on the XMB and in recovery mode but didn't work!

when i look in system settings it says its on 4.40 (so it spoofed. i don't know if thats the problem)
when i'm trying to install the 3.55downgradePUP on the xmb its says its a 4.21 ps3update.pup.

got the error: 8002f95e

anyone knows how to fix this?

mine was doing the same thing. go to the main page on ngu go to ps3 cheats and customization and go the the master custom firmware collection (first one) go down to dex and download that 355 downgrader. that one works

You'll need to downgrade from PS3ita with a D-REX fw such as that of which rebug provides on their website at rebug.me

thanks, ill try both!