I disagree. The tests I did show that sometimes the screen turns on without the ear sensor being separated. I also did tests in which separating it to a limit, the screen remained off without any problem. If the problem were hardware or the position of the sensor, it would always obtain the same results when performing the same tests and under the same conditions, however it is not so, and under the same circumstances, the tests obtain different results. Sometimes with the sensor fully attached to the ear, the screen turns on intermittently, and on other occasions it does not occur. I repeat, when it works correctly it is proof that the hardware does not present problems. Can there be interactions with other sensors? With the fingerprint sensor for example?