How to fix iPhone error: Failed – Unable to complete Touch ID setup. Please go back and try again.

Conclusion:  iPhone touch ID error can be caused by a hardware issue and the device may need hardware repairs.

One day the Touch ID feature on my iPhone 6 stopped working.  Attempting to change the phones settings to enable the Touch ID functionality would show the following error: Failed – Unable to complete Touch ID setup.  Please go back and try again.

I followed these steps to troubleshoot this error:

  • Back up the iPhone to iTunes.  Then erase all content and settings to start with a fresh install of the iOS software.  Then tried  to set up Touch ID during initial phone set up was not successful.  This points to a hardware issue.
  • I called Apple support and talked to a technician.  After confirming that the software had already been reinstalled the tech suggested that I visit the genius bar.   I was able to get an appointment for the same day.
  • The Apple genius bar tested my phone and confirmed that the Touch ID error was due to a hardware issue.  Their recommendation was to replace the screen digitizer, the cost would be $110 and it would take about an hour.  If the repair did not fix the issue with Touch ID there would be no charge for the repair.
  • The apple genius to test my battery which is running at 80% of its initial capacity.  The phone is about 1 1/2 years old.

My findings concluded that the Touch ID unable to set up error is caused by a hardware issue.  Apple can attempt to fix the issue by replacing the front screen digitizer but the repair is not guaranteed to solve the problem.

Jim’s Garadge 

This is Jims Garadge. Jim is a retired guy. He worked on my 1969 Honda CT90 scooter and brought it back to rideable condition, working through a number of complicated issues. He’s got a collection of classic Honda scooters and motorcycles that restores as a hobby.