持续按住，直到手机完成开机过程进入锁定屏幕或主界面，此时“安全模式”已经激活。 为什么这个功能很有趣？
Rarely, the Xperia 1 II will get stuck booting into Safe Mode every time. To fix this:
This is the most reliable and recommended method for the Sony Xperia 1 II. It involves using the physical power button and volume keys.
Exiting is simple and does not require resetting your phone.