sign in error code

Hi, i have a new PS3 from a friend.
My way with it :
1/ HEN to CFW
2/ CFW to "3.55.4 REBUG"
3/ 3.55 to 4.84.2 REX REBUG
4/Using CEX2DEX
5/ i need to download Netflix and a maybe other things
6/ sign-in but obtain this error : "80023154"
7/Rebug Toolbox -> Change ps3id to "EID5: 85(CEX)"
8/try now to Sign-in again BUT new error code "80023017"
9/R2 + /\ for delete history and syscall
10/going to sign-in again BUT same error code "80023017"

i think is because im not on the latest update,...

sign in error code