I keep seeing the message “Unable to activate Touch ID on this iPhone” after a recent update. Has anyone else faced this issue? What’s the best way to fix it or re-enable Touch ID?
You may be unable to activate Touch ID on your iPhone due to software glitches, dirty or damaged sensors, or incorrectly registered fingerprints. Ensure your Home button is clean and dry, restart the device, and update iOS. Also check if a screen replacement affected the sensor. If Touch ID still won’t activate, hardware repair may be required.