Why Sony couldn't capture the market?

Hi, this is George Brown and I am tech savvy, professional writer and an educationist. I like to work on tech and I like new things and innovations that being done in tech industry and one of the biggest tech industries includes android phones. Sony is a very big part of tech industry and it has revolutionized technology in every aspect from televisions, music, gaming, smartphones and much more. Yet they could not do anything about their smartphones. Currently, they hold 1% of smartphone industry. But why? They used to make great smartphones their xperia series was phenomenal, but where do they lack? Sony uses top notch hardware with great optimized software but why do they hold only 1% of customer around the consumer?