In the section ‘What should Windows 10 Mobile customers do now’ the FAQ page states that “With the Windows 10 Mobile OS end of support, we recommend that customers move to a supported Android or iOS device. Microsoft’s mission statement to empower every person and every organization on the planet to achieve more, compels us to support our Mobile apps on those platforms and devices.”
However, the December 10, 2019 timer is only for the Windows 10 Mobile (version 1709) smartphones, states the official FAQ page. For some, the end date is closer. It has been mentioned that Lumia 640 and 640 XL phone models, which were launched back in 2015 and are running Window 10 Mobile version 1703 will reach the end of support on June 11, 2019.
It is worth adding that the Windows 10 Mobile smartphones will continue to work after December 10 this year.
While the support and update rollouts will come to an end this year, some services may continue for some time. “After the end of support, automatic or manual creation of new device backups for settings and some applications will continue for 3 months, ending March 10, 2020. Some services including photo uploads and restoring a device from an existing device backup may continue to work for up to another 12 months from end of support,” states the page.