1. It may be because the environment is relatively closed and there is not enough satellite signal.
2. It may be because the star searching speed of Jiaming Watch is relatively slow, and it takes a long time to search for signals.
3. It may be that the positioning accuracy of Jiaming Watch is limited, and it cannot be accurately positioned indoors.
You can try the following solutions:
1. Open windows or other open locations indoors to increase satellite signals.
2. Wait for a period of time, so that Jiaming Watch has enough time for satellite signal search.
3. If you need high-precision indoor positioning, you can consider using other positioning equipment or technologies, such as indoor map application and Bluetooth positioning.
The above information is for reference only. If you can't solve your problem, I suggest you consult the official customer service for help.