Nokia tested Android on Lumia smartphones before make deal to Microsoft.

Nokia is one of the major smartphone maker around ten years in the industry.But recent years they could not succeed in the Android market.So Nokia make the deal with Microsoft for the touch based software.But Nokia was secretly testing  Android in the Lumia as well as Asha smartphones if the Microsoft OS didnt sale in Market.In Nokia one of the team is working with Android based OS with Lumia smartphones.So as of now the entire Nokia has sold out to the IT Gaint Microsoft.