1. Find the transmission array of Chenxian Island in the current game: find the location of the transmission array on the map of Chenxian Island. The transmitting array is usually located in an important location, such as a city or a major mission area.

2. Interaction with the transmission array: After approaching the transmission array, interact with it and choose the option of returning to Hangzhou.

3. Confirm delivery: After choosing to return to Hangzhou, you will be prompted to confirm delivery. After confirmation, you will be sent back to Hangzhou.

Please note that the specific operation may be different according to the game version and update. If the above steps can't help you return to Hangzhou, please refer to the in-game guide or consult other players or the official support of the game.