Help SAMSUNG A11 outgoing calls not working

[moh@med11]

Hi...
Samsung A115F outgoing calls not working Sw Ver A115FXXU5CWF1
i try to flash it but same problem....
any Idea...

when i insert sim or try to call i have this message:
your sim card isn't fully operational with this phone.......

 

[Mahoni]

Hi...
Samsung A115F outgoing calls not working Sw Ver A115FXXU5CWF1
i try to flash it but same problem....
any Idea...

when i insert sim or try to call i have this message:
your sim card isn't fully operational with this phone.......

Inbox me +251939732213

 

[moh@med11]

I have a full dump by hydra dongle ... can i downgrade from u5 to u4 ... and write security backup ???