For mirroring your iPhone to an LG TV without having Apple TV, I’ve got a couple of suggestions that tend to work well. First things first, you wanna make sure both your iPhone and your LG TV are connected to the same Wi-Fi network to make any of these methods work.
One reliable option is using the DoCast Screen Mirroring app. This app usually doesn’t get laggy and supports most LG TV models. You can grab it from the App Store and follow the steps it guides you through. It’s pretty straightforward. You can check out more details on their Official DoCast App page: iPad & iPhone Cast to Roku, Chromecast, DLNA Smart TVs, and Fire TV
Another method is to use an HDMI adapter. You need to buy a Lightning Digital AV Adapter from Apple or a certified one from another brand, and an HDMI cable. Plug the adapter into your iPhone, then connect the HDMI cable to the TV and adapter. Your iPhone screen should instantly mirror to your TV.
If you prefer wireless, and DoCast doesn’t work for you, there’s also an app called LetsView which you can try. It’s free and pretty user-friendly. Just install it on your iPhone and follow the instructions it provides.
And if none of these work, you might need to check if your TV’s firmware is up to date. Sometimes outdated software can prevent these connections from working smoothly.
Hope one of these solutions works for you. Tech can be a real pain sometimes, huh? Good luck!