1. The shared QR code is valid for only 30 minutes. Please scan the code to share the device within 30 minutes.
2. Please check whether the APP regional settings are the same? Method: In the APP “Mine”-“Settings”-“Location”, check whether the regions of the two mobile apps are the same? If it is not the same, please change to the same and then scan the sharing device. For example: A mobile phone APP area is other areas, B mobile phone APP area should also be set to other areas to scan the code and share.