Finger Print sensor gone after Oreo Update

[giocorrado]

After update my sony xperia xz premium , OTA update , the finger print sensor is gone , i don t even have the option to activate it...

Any help to roll back ?

[Uliwooly]

@GioCorrado77

I've edited your post to remove profanity, as for the fingerprint issue, do you have the USA version of this phone? did you manually updated the phone with Xperifirm or flashtool?

[ferms123]

My fingerprint sensor also suddenly gone. I see a message of fingerprint sensor not available then I restart the phoneand then my fingerprint sensor totally gone.

I've already made a software repair and reflash the phone also but the option still didn't appear.