In mid-September 2013, a media report revealed that Nokia tested the Android operating system on both its Lumia and Asha hardware.[154] On 11 December 2013, a report showed that development of the Asha-like device, codenamed "Normandy", was continuing, despite the finalisation of Nokia's acquisition by Microsoft.[155] In February 2014, in Barcelona, Spain, the Nokia X family was unveiled at Mobile World Congress.