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Blog1 min read

“Unable to activate Touch ID on this iPhone” error

The “Unable to activate Touch ID on this iPhone” message sometimes appears after an update and clears with a restart or by adding the fingerprint again. If it appears after a Home button replacement, note that the Touch ID sensor is paired to the main board and does not work with an unpaired button.

Cep Market Repair TeamIn Kadıköy since 2006
Key points
  • First restart and update iOS.
  • Delete and add your fingerprints again in Settings › Touch ID & Passcode.
  • The Touch ID sensor is paired to the phone’s main board.
  • With an unpaired new button, the button may work but Touch ID does not.
  • Do not throw away your original button; the repair may need it.

01Software steps first

  1. Restart. Turn the phone off and on.
  2. Update. Update iOS in Settings › General › Software Update.
  3. Refresh fingerprints. Delete saved prints and add them again in Settings › Touch ID & Passcode.
  4. Clean the button. The button surface should be clean and dry; your finger should not be wet.

Menu names vary by iOS version.

02Likely cause by symptom

SymptomLikely cause
Appeared after an updateSoftware
Appeared after a button replacementUnpaired button
Appeared after a screen replacementButton cable or connection
After a drop or liquidButton, cable or board
Does Touch ID break after an iPhone screen replacement?

See also fingerprint sensor not responding and touch problems after a screen replacement.

Brand › Model › Repair listChoose your model, ask about the faultiPhone models

03How to get your phone to us

Visit our store

Hasanpaşa Mh. Söğütlüçeşme Cd. No: 192 (opposite the mosque car park), Kadıköy. Monday – Friday 09:00 – 20:30 · Saturday 09:30 – 20:30 · Sunday: Please ask.

Send it by post

Free two-way shipping with our contracted carrier from anywhere in Turkey. Send the device without its case, in a well-protected box, with a note giving your phone number and the fault.

Motorbike courier

Within Istanbul you can send your device by motorbike courier; just send us your address and the fault on WhatsApp.

FAQ

Frequently asked questions

01

What does “Unable to activate Touch ID on this iPhone” mean?

The iPhone cannot reach or verify the Touch ID sensor. Software, the button cable or an unpaired button can cause it.

02

Why does Touch ID stop working after a Home button replacement?

The Touch ID sensor is paired to the main board. With an unpaired new button, the button may work but Touch ID does not.

03

Does Touch ID break after a screen replacement?

If the original button and its cable are moved to the new screen, Touch ID keeps working; it is tested before return.

04

Will the repair delete my data?

Data is usually preserved during a repair; still, you need to back up your data before the repair starts (backups are the customer’s responsibility).

Customer reviews

What our customers say

★★★★★

Today we had an original battery replacement on our iPhone 14 Pro done by Can, and we thank him very much for his kindness, his speed and his professional support. You can come with no question marks in your mind. I recommend it 👍

Özgür Can K.Customer review · Translated from Turkish
★★★★★

They replaced the battery of an iPhone 11 in 20 minutes and handed the device back.

Selçuk S.Customer review · Translated from Turkish
★★★★★

They replaced the screen of my iPhone 17 Pro Max with an original one within an hour. Emir and Kerem looked after me very well. An amazing business.

Ali E.Customer review · Translated from Turkish
★★★★★

Thank you, I had my device repaired: front glass replacement on a 17 Pro Max within an hour.

AhkCustomer review · Translated from Turkish
★★★★★

My brother Kerem welcomed us wonderfully; he truly knows the whole workshop by heart. Can, my doctor, left his mark on an iPhone that nobody else could fix. Thank you.

Saidovski M.Customer review · Translated from Turkish
★★★★★

I had the front glass of a 14 Pro Max replaced and I am pleased. Well done.

Alp Tunahan T.Customer review · Translated from Turkish
★★★★★

I had the screen and battery of my 14 Pro Max replaced and I am very pleased. Thanks for your work.

Oğuzhan O.Customer review · Translated from Turkish
★★★★★

I think you will be pleased with their approach, their helpfulness and their care.

Our customerCustomer review · Translated from Turkish

From our customers’ reviews. All reviews

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Is Touch ID not working?

Diagnosis is free of charge. Send us the model on WhatsApp.

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