iPhone 6 - Touch ID not working, Speaker not working, Syncing Not working...

Ok so the following suddenlty stopped working on my girlfriends iphone 6

• Touch ID not working. cannot use it ot unlock. does not fail just nothing happens. Trying to add new fingerprint. Nothing happens. just keeps waiting for you to touch the sensor.

• Syncing using apple supplied lightning cable not working. "device not compatible" on screen. This is when plugging into a mac. using other official cables produces same result. Using other phones with same devices and cables produces no issues.

• does not work with any third party device. other iphones do.

• earpiece speaker for when using phone does not work

• charging does work with any cable to an wall adapter.

Not sure what else doens't work. Reboots haven't taken care of it. I'm guessing this phone needs to get swapped out but I suppose I'm gonna try restoring it see if that does anything.

Had the phone for two weeks.