華為手機不連wifi可以投電視不？

Yes， Huawei phones can still cast to a TV even without being connected to Wi-Fi. The method used for this will vary based on the specific TV and phone models， but there are a few general techniques that can work.

One way to cast your Huawei phone to a TV without Wi-Fi connectivity is by using an HDMI cable. To do this， you will need to purchase either a USB-C to HDMI adapter or a whole HDMI docking station that connects to your phone. Once you have this cable or dock， simply plug one end of the HDMI into your TV and the other into your phone. From there， your TV should display your phone's screen as if it were connected to Wi-Fi.

Another option for casting your Huawei phone to a TV without Wi-Fi is through the use of screen mirroring. This feature is available on some TVs and allows for device mirroring without the need for an internet connection. To use screen mirroring， you'll need to enable the feature on both your phone and TV. On your phone， this is typically found under the "Display" settings. On your TV， it may be called something like "Screen Mirroring" or "Wireless Display". Once both devices are set up， you should be able to see your phone's screen on your TV without accessing Wi-Fi.

Overall， while Wi-Fi can make the casting process more convenient， there are still ways to cast Huawei phones to a TV without it. Both HDMI cables and screen mirroring can be used to accomplish this task， giving you more flexibility in how you use your device.