My iPhone can’t activate touch id

If you already tried (to no avail) all the steps provided in this support article:--> If Touch ID isn't working on your iPhone or iPad , I suggest that you contact Apple Support directly, using this link:--> Contact Apple for support and service or make an appointment (*) and have your device inspected at an Apple Store or AASP (Apple Authorized Service Provider) among this list:--> https://locate.apple.com/choose-country-region . After checking it out, they'll give you all the available options.

Regards

Giulio

(*) You can do it:

• Online:--> Genius Bar Reservation and Apple Support Options - Apple;
• Contacting a local Apple Store or AASP among the list provided above;
• Using the "Apple Store" app, available and downloadable from AppStore.

"My iPhone can’t activate touch id: it says that touch id is unavailable"

-------

Troubleshooting the Touch Bar:

I take it you have a Touch Bar? Go Here: If Touch ID isn't Working on your Mac - Apple Support

No Success?

Use an External Keyboard:

If so, use an external keyboard for this. Use [ctrl + F1] for a PC keyboard. This would be the adapter to use: USB-C to USB Adapter - Apple