What version of the game do you have? What save set are you using? What exactly are you editing in the sfo file?

Use any of the saves you have from other games to know exactly from one save to the one you want to resign or just let bruteforce do the job for you.

Did you also delete the profile and other data file from your PS3?

I am using xploder, Finding it hard to do, I know you have to re-sign saved games to get them to work, But how can you get dead island to work? As you cant copy it from the PS3 Save data to USB, Then if i put Dead Island Save game from xploder to USB and copy it to my Save data, Then i go on dead island and its not there? Just wondering how do i get this to work?/

EDIT
Thread needs moving.

hi,
i had the problem too with the game of the year edition BLES01681 and finally, i resigned the save with bruteforce only the param.sfo with the region BLES00749 and it worked like a charm.
hope it will work for you too,

Open downloaded save in Bruteforce and click PARAM SFO,right click and select Decrypt PFD

Double click PARAM SFO and click Account ID and then change subtitle to your name (i used my PSN ID) Untick protected (if its ticked) and click save,it will ask you if you want to overwrite,click yes

Go back to Bruteforce and click Decrypt PFD and select all files,click Patch SFO and click Title ID/Region,in here put BLES00749 click ok,Update PFD and verify

Do this for all three of the saves

Now copy over to usb stick and then onto your PS3 and load the game up and it should work

The above method also works with You must login or register to view this content.

i did like omegabeta explained in another dead island thread :

yes me too, but it worked with bles00749 like it is said