The watch needs to be turned off in advance. Press and hold the side key 10s to turn it off. Then, we took out the exclusive screwdriver accessories of Glory Little K, opened the back of the watch (the screw can be screwed into the shape of a meter, and the shell of the card slot can be pried open into a word shape), and put the mobile Nano SIM card into the removed cover. Note: Do not touch the metal sheet in the card slot with sharp tools during installation or card taking.

Chat object source administrator: including main administrator and deputy administrator. Watch friends: friends added by shaking watches. Second, the chat scene introduces one-on-one chat: enter the chat interface, and the baby can choose the contact person who wants to chat to chat. Family group chat: the baby can choose a family group to send messages, and the family group includes all administrators. Note: the main administrator will automatically create a family group chat with the watch after binding, and the deputy administrator will automatically join the family group chat after binding.