To upgrade the fast charge function of the Roewe e50, you can follow these steps:
First, make sure your vehicle is connected to the Internet.
Then, open the Roewe e50's on-board system and access the Settings menu.
In the Settings menu, find the \"Charging Settings\" option and tap into it.
In the charging Settings, you should be able to find a \"Fast Charge Upgrade\" or similar option.
After clicking this option, the system will automatically detect whether there is a fast charge upgrade package available. If an upgrade package is available, you will be prompted to download and install it.
Once downloaded and installed, your Roewe e50 will be ready for fast charging. Please note that before upgrading, ensure that your vehicle battery is fully charged and that you maintain a stable network connection.