Can't make calls after update (5Z)

[batsika_d]

I have Asus ZenFone5
And after upfating , I can't make any phone call.

[skylerwolfe]

Please add 5z to your title as this is the 6z forum.

[LP_ASUS]

Can you try factory resetting your phone after backing up your data? If you are still unable to make any phone calls after a factory reset, please contact your local ASUS service center for more help.