A: Please make sure that the battery is installed correctly, and then confirm that it is full. If all is OK, it could be that the conductive glue on the screen is not pressed properly or that there is something wrong with the sensor itself.
A: Please make sure that the battery is installed correctly, and then confirm that it is full. If all is OK, it could be that the conductive glue on the screen is not pressed properly or that there is something wrong with the sensor itself.