Face ID and Brightness issue

MubashirMalik Said:

"Face ID and Brightness issue: Hi there, . My phone suddenly stopped working and when I turn it back on my Face ID said it was unavailable I couldn’t even set it back up as it wouldn’t let me. [...]Issue not resolved"

-------

Get this Serviced:

Sounds like all the basics were tried here. So, you may want to take this in for service. You have a one-year, out-of-the-box, limited-warranty with this. So, see if it can be fixed, and if it would be of no cost to you (if found to be faulty device)

To Set Up a Genius Bar Appointment:

Set up a Genius Bar Appointment (GBA) at your local Apple Store.

1. Siart here: Genius Bar Reservation and Apple Support Options - Apple
2. Scroll down to the Bottom of the page
3. Click the Get hardware help button
4. Proceed from there as necessary.

What to Bring:

Important: Bring some notes, your original proof of purchase, and create a backup prior to bringing it in. Though not required, bring the power adapter along, in case theirs does not work.  See More here: Get your iPhone, iPad, or iPod touch Ready for Service - Apple Support

"Face ID and Brightness issue: Hi there, . My phone suddenly stopped working and when I turn it back on my Face ID said it was unavailable I couldn’t even set it back up as it wouldn’t let me.[...]"

-------

For reference...

Troubleshooting Face ID:

Start here: If an Alert Says Face ID has been Disabled on your iPhone or iPad Pro - Apple Support

No Success?

Refer to the tips mentioned on these links:

• If Face ID isn't Working on your iPhone or iPad Pro - Apple Support

• If you can’t Turn on or Sign in to iMessage or FaceTime - Apple Support

• If you can't Make a FaceTime Call on your iPhone, iPad, or iPod touch - Apple Support

• If you Experience an Error when Trying to Activate iMessage or FaceTime - Apple Support