What is the Touch ID feature in the Apple iPhone 5S for?

you need to take it back if second hand as apple will not do anything to take it off they will make you contact the last owner to remove it.

the phone should be re set my the seller

Angelina-

To set up a passcode for your iPhone, iPad, or iPod Touch, go to Settings > Touch ID & Passcode (iPhone 5s) or Settings > Passcode (other models) and tap Turn Passcode On.

NOTE: If you or someone else enters the wrong passcode too many times, your device will disable itself temporarily.

hello, CHECK this site for info on removal...https://discussions.apple.com/thread/4307758?tstart=0

HOPE IT SERVES YOUR PURPOSE

differences between these iphones

Hi, you cannot bypass the activation in iPhone because that's one of the security feature implemented by Apple, you just have to type in your Apple ID and password and you'll be able to activate your iPhone with no problem.

this problem solve only iphone care line. pls you contact iphone sels promoter.

You can try TunesKit iPhone Unlocker to reset your Apple ID password on your iPod touch.

Here's a step-by-step tutorial:

Step 1. Connect your iPod to your computer


First, get your iOS device connected to a computer. Then launch TunesKit iPhone Unlocker, and select the Unlock Apple ID option.
Step 2. Setting Confirmation before Deleting Apple ID


If you have Find My iPhone enabled on your iOS device, you will need to confirm that a passcode is set and turn on two-factor authentication on your device.
If the Find My iPhone feature is disabled on your device, you can skip directly to the next step and tap the "Start" button to unlock your Apple ID quickly without losing data.

Step 3. Remove Apple ID

Once confirmed, TunesKit iPhone Unlocker will start downloading the matching firmware and then remove the Apple ID from your iPod touch.

Hope it helps!

you can try going into settings then 'about' click on reset my phone and make a new one or when you put in your sim connect to a computer and sync with itunes to make a new account

All fingerprint information gathered by the Apple iPhone 5S touch ID feature is secured in a A7 chip that is locked away from everything else, accessible only by the Touch ID sensor. It's never available to other softwares, nor stored on Apple servers, nor on iCloud.