How to play the ending of Phyllis at the Stone Gate of Destiny? I didn't see the prompt to send dmail when I played Chapter 6.

When the pattern of radio waves appears at the back of the conversation, it means that the mobile phone needs to be turned on for operation. It may be an insignificant short message, or you may be asked to choose whether to send Dmail. If you want to enter Phyllis route, you need to choose to send Dmail before the end of the conversation about whether to send Dmail. Find the phone, microwave oven (tentative) and choose to send SMS to trigger the end of the Phyllis branch line and enter the New World Line. The change rate of this world line is negative, and the interpersonal relationship in Okabe has also been reorganized. It is neither in the convergence range of α-world beam nor β-beam. A brand-new world line.