Watch software set the power off after charging, the watch will return to the initial state. When this happens, please turn on the Bluetooth function of the mobile phone, turn on EZON APP (appropriate quasi-motion), and close the watch to the mobile phone. The watch will automatically connect with the APP and synchronize the time and settings. After completion, it can be used normally. When the watch is prompted by low power, it can be charged in time to avoid the watch returning to its original state.