1) Nokia was once a global leader in mobile phones but made missteps that led to its decline, such as underestimating the smartphone market and sticking with the outdated Symbian OS too long.
2) Some of Nokia's biggest mistakes included a lack of flexibility and responsiveness to market changes, poor communication within the company, and top managers who were too rigid in their thinking and reluctant to acknowledge threats from competitors like Apple.
3) These strategic failures prevented Nokia from capitalizing on opportunities and led to a loss of market share. By the time Nokia tried to pivot to Windows phones and sell its business, it was too late to reverse its fall.