epa08186916 (FILE) - A smartphone screen displays the logo of the mobile application WhatsApp in Berlin, Germany, 31 December 2017 (reissued 02 February 2020). WhatsApp announced that it will stop working from 01 February 2020 on iPhones and Android devices running outdated operating systems. Millions of smartphones will no longer be able to run the Facebook-owned messaging service, media reported.  EPA/HAYOUNG JEON *** Local Caption *** 55190442