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I found this tut by: xPreeksModz on utube

I want to change my mac I am on rebug 4.46.1 D-REX
I have my CEX flash I rename it to CEX-FLASH.EID0.NORBIN
I use rebug toolbox / Rewrite Target ID in Flash and change it back to CEX
I then use REBUG_3.55.4_999_DGR_PS3UPDAT.PUP to downgrade my ps3
I then install OTHER0S++SPECIAL 3.55 CFW

then I install Chaos Air Bringer.pkg and make a backup of my MAC and change it
I can then install rebug 4.46.1 REX EDITION and use rebug toolbox and rewrite target id back to dex with DEX-FLASH.EID0.NORBIN

I then select Boot OtherOS in rebug toolbox and downgrade again with DEX DowngraderPS3UPDAT.PUP
and I can then go back to Rebug 4.46.1 D-REX

are these steps correct ??

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Thanks for that but I am on DEX so I have to get back to CEX first, I also want to go back to DEX mainly so I can use TMAPI

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