Here is one article I found, the basic claim is that the Touch ID sensor is (cryptographically?) paired to the secure enclave and replacing it requires Apple ma

Here is one article I found, the basic claim is that the Touch ID sensor is (cryptographically?) paired to the secure enclave and replacing it requires Apple magic sauce to revslidste the sensor/enclave pairing. https://9to5mac.com/2016/02/05/error-53-iphone-6/ https://9to5mac.com/2016/02/05/error-53-iphone-6/