Troubleshooting for Touch ID Not Working on iPhone 6s after Screen Replacement


It’s a common problem that you may lose touch ID after iPhone 6s screen replacement. Often 3 in 10 times the screen repaired iPhone 6s might experience issues with the finger sensor.

For an iPhone’s cracked or damaged front screen, Screen replacement could be an advantageous and economical solution. Though it can be a delicate process, you need to remove front screen, home button, front-facing camera, sensors, LCD shield plate and home button ribbon cables. These are quite delicate parts. And also, the metal battery connectors and logic board of the phone need to be moved. They must then be re-assembled with a new front screen onto the existing phone.

All this reassembling can have a great impact on the iPhone’s finger sensor even after a successful repair of the screen, as it is directly related to the screen component.


In that instance, there are a few troubleshooting steps to take to address what the actual problem might be:

  1. 1.Use your finger to press in and out of apps to test the iPhone 6s LCD screen. If this is working, it means your screen repair is fine, and the problem lies elsewhere.
  2. 2.Make sure that the repair transfers the home button extension cable properly with the new screen. Test this by pressing the home button to see if it will go back to home screen. If you are in trouble with the home button, then the cable might be damaged. It can be repaired by resetting or replacing the cable located on the back of the LCD shield plate
  3. 3.
    1. If the finger sensor isn’t working even though the home button is, try calibrating the Touch ID function on the iPhone to clear the previous data and re-record a new fingerprint, as sometimes screen repair could change the finger print data.
    2. If the fingerprint sensor still doesn’t work, well, it may be an issue with the iPhone’s LCD backlight. In the tough case, the phone needs to be sent back to the supplier for repair, or just replacing the 3D backlight metal plate on the phone.
    3. Knowing these troubleshooting steps can help diagnose a solution for a faulty Touch ID. However, as this is a technical aspect, this troubleshooting steps guide is just for technical exchange. A DIY procedure should be discouraged at all cost. Undertaking any repairs on an iPhone should be handled carefully and preferably by a professional to achieve a proper restoration.