What is the situation when the Envision navigation has no network?

[StAddyson]

The Envision navigation may have no network due to account password mismatch, please check if the account matches; network connection error, check if there is poor network signal in the current location; the navigation has not downloaded offline maps and offline navigation information. Network signal issues: If the navigation software has not downloaded offline maps and offline navigation information, it can only rely on online network for navigation. Navigation software usually defaults to obtaining real-time traffic information and also uses carrier wireless networks for quick positioning, so it will search for a network. If neither WIFI nor mobile network can be connected, it will prompt a no-network error. No-data navigation method: If you want to navigate without using data, first download offline maps and offline navigation information. Additionally, you may need to turn off features like real-time traffic. For specifics, refer to the navigation software's offline navigation instructions.