This case study examines how Ericsson, a leading provider of information and communication technology, implemented changes using Kotter's 8-step change model. It details how Ericsson created a sense of urgency around transitioning to 4G technology, formed a guiding coalition to lead the change, and communicated a clear vision. Ericsson also empowered employees by providing training, planned short-term wins to maintain motivation, and consolidated improvements to institutionalize the new approaches. Implementing Kotter's full model helped Ericsson successfully transition to 4G while maintaining its customer focus and shared values.