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I recently updated my console to PSITA 4.50 DEX V1.0 firmware. I updated it over REBUG D-REX 4.46.1 edition. I now want to revert back to REBUG 4.46.1 DEX, but everytime i try to downgrade I keep recieving the error code 8002F827. I've tried multiple 3.55 DEX Downgraders with no luck and i have tried re-installing the same CFW over it with no success either. Any suggestions?

Thanks guys.

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after this update 3.55 dex .... and thereafter update to Rebug 4:46 d-rex

I'm still getting the same error, it seems I cannot install any other FW. I need some more suggestions

I did the same procedure, I've gone from ps3ita4.50dex to Rebug4.46D-REX

have you tried from recovery mode? or you can try to change hd?

I'm on the same page as you can't upgrade or downgrade :/

You need to use the Dex to Cex tut then downgrade I believe.

DO NOT use DEX to CEX tut on a ita console otherwise it will end on a brick. Try 3.55 dex downgrader from recovery menu

Did you Qa flag your system?