PS3 Downgrade CECHB00

[Alberto1199]

Hello! How can I downgrade to 1.00? Already tried to install through fcsm, rebug 4.84.1 and rogero 3.55 but "data corrupted" appears.


Inviato dal mio iPhone utilizzando Tapatalk

 

[atreyu187]

Hello! How can I downgrade to 1.00? Already tried to install through fcsm, rebug 4.84.1 and rogero 3.55 but "data corrupted" appears.


Inviato dal mio iPhone utilizzando Tapatalk

Enable QA flags then do the button combo to enable debug settings. After that enable system update debug and you can freely downgrade then. Got a CECHB myself works like a charm.

 

[Alberto1199]

Enable QA flags then do the button combo to enable debug settings. After that enable system update debug and you can freely downgrade then. Got a CECHB myself works like a charm.

I did that but it doesn't work


Inviato dal mio iPhone utilizzando Tapatalk

 

[atreyu187]

I did that but it doesn't work


Inviato dal mio iPhone utilizzando Tapatalk

Then you are doing something wrong bud. Follow this tutorial as I have been using it for 8+ years in my CECHB-01

Also try downgrading in increments. I can't update from 1.00 to above 3.55 so I go 1.00 to 3.55 then whatever modern firmware I was to use.

https://www.psx-place.com/threads/how-to-use-debug-update-tutorial-by-pinky.158/

 

[NiQ]

Hello! How can I downgrade to 1.00? Already tried to install through fcsm, rebug 4.84.1 and rogero 3.55 but "data corrupted" appears.


Inviato dal mio iPhone utilizzando Tapatalk

AFAIK there's no 1.00 firmware PUP available (at least no retail, only DEX). The lowest you can downgrade to is 1.02.
Also I'm not sure all launch models came with 1.00, better verify that with MinVerChk.

 

[IDare]

if you are on cfw, go to advanced settings, or service settings (i dont remember how it was called, and sorry for REALLY bad grammar), there should be minimum downgrade, you will have 1.00 as minimum. you can check here: https://www.psdevwiki.com/ps3/SKU_Models (idk why it dosent work, it gives a "MediaWiki internal error."