Touch id failed to activate touch id on this iphone

Causes of Touch ID failure

The Home button now performs the functions of the menu and the fingerprint scanner. Due to the constant demand, its breakdown is not so uncommon. Although, in most cases, careless handling of the iPhone is the cause of the failure: accidental drops, moisture on the case, using the sensor with dirty hands, and much more.

Recreating Touch ID fingerprints

This method works most often if TouchID stopped working after updating iOS and does not work in any application.

The steps to fix the problem are as follows:

1. Go to Settings – Touch ID & Passcode – enter your password.
2. Disable “Unlock iPhone”, “iTunes Store and Apple Store” and, if using, Apple Pay.
3. Go to the home screen, then press the home and on/off buttons at the same time until the Apple logo appears on the screen. Wait for the iPhone to restart, this may take a minute and a half.
4. Go back to Touch ID and Passcode settings.
5. Turn on the items that were disabled in step 2.
6. Add a new fingerprint (required, old ones can be deleted).

After that, everything should work, and the error with the message that it was not possible to complete the Touch ID setup should not appear again.

6 Solutions to Touch ID

We have collected the most common causes of failure and the corresponding error solutions.

• To fix a system crash, try completely draining your iPhone. After that, try to authorize your finger again. For better recognition, scan it three times in the security settings. You should have three slots. You can also try turning off the device by pressing the power button and the home button at the same time. In this case, it may be necessary to go back and try again several times in order for the fingerprint initialization to work.
• To fix a system crash, try completely draining your iPhone. After that, try to authorize your finger again. For better recognition, scan it three times in the security settings. You should have three slots.
• You can also try turning off the device by pressing the Power button and the Home button at the same time. In this case, it may be necessary to go back and try again several times in order for the fingerprint initialization to work.

2. Repair

After a specific Touch ID repair, iPhone very often starts to give an error “Cannot complete Touch ID setup”. This is due to two factors: an unqualified repair or a gross error. In the first case, the small experience of the one who carried out the replacement is implied. Apparently, he did not know that changing the Home button itself is strictly forbidden, even if a screen change is in progress.

3. Purity

Always keep your scanner perfectly clean. Avoid touching it with dirty hands. If this happens, wipe gently with a slightly damp cloth or cotton soaked in alcohol.

Sometimes sellers lower prices precisely because of the lack of the Touch ID function. Always check the availability of this parameter, because it is very often absent in refurbished phones. So you can save a good amount. If this is critical for you, then it remains only to go to the official store.

5. Firmware

The final method is flashing or restoring via iTunes. Although the probability is minimal, it is still worth a try. Only experienced users should carry out this action on their own, the risks are still very high.

6. Service Center

With iPhone repair, it is always better to contact only official service centers or trusted craftsmen, because there are a lot of “handicraftsmen” today. This may be more expensive in the beginning, but it will insure you against unexpected problems in the future.

And at the end, just an up-to-date video instruction on solving problems with malfunctions in the touch ID in iPhone.

Other Ways to Fix “Can’t Complete Touch ID Setup” Error

If the method described above did not help you, then it remains to try other options, which, however, are usually less effective:

1. Try to delete all fingerprints in Touch ID settings and create again
2. Try restarting the iPhone using the method described in point 3 above while it is charging (according to some reviews, this works, although it sounds strange).
3. Try to reset all iPhone settings (do not delete data, namely reset settings). Settings – General – Reset – Reset all settings. And, after the reset, restart your iPhone.

And finally, if none of this helps, then you should either wait for the next iOS update, or, if the iPhone is still under warranty, contact the official Apple service.

Note: according to reviews, many iPhone owners who encounter the problem “Cannot complete Touch ID setup”, official support answers that this is a hardware problem and either change the Home button (or the Home button screen), or the entire phone.