Same as the previously reported desktop, wrote on the page: "Your device is still running the old version.Windows10. If you want to continue to receive security updates and the latest features of your Windows 10 system, you will need to upgrade to a newer version. "Mobile end users check for updates by setting >>Update &Security>>Phone Updates>>.
However, clicking "Update Now" on the mobile phone actually jumps to the PC application connection, so the foreign media speculates that this is becauseMicrosoftWhen making adjustments to the desktop, it does not distinguish between the mobile side. The same upgrade recommendations appear on both Windows 10 Version 1607 and Version 1709.