The reasons for not responding when pressing and holding the delete button are listed below:
1. Some virtual buttons near the edge of the screen conflict with edge suppression requirements;
2. Pressing and holding the alarm point within 35 pixels of the short edge in landscape mode will be suppressed. This is the design for the phone;
3. If there is no problem with pressing, however, when a problem occurs with pressing and holding on, you can press slightly the left side of the button instead of pressing at the edge of the screen.