Is there no way to do a wired screen mirror on the LG V30 using only LTE data? I bought a USB-Type C-to-HDMI cable hoping I could connect my phone to my TV or one of my HDMI-enabled computer monitors using only my 4G LTE data. The cable works just fine for screen mirroring as long as I'm using my home WiFi, but when I attempt to use the phone's LTE sans WiFi, the phone keeps flashing "connecting secondary screen" and "disconnecting secondary screen" and simply doesn't work. This seems to be by design.
I have multiple reasons for wanting to use the data instead of WiFi in some situations (one is I'd like to have it when visiting my daughter who has no Internet). I've tried it on two monitors with HDMI ports and my TV, all with the same result - as long as the phone is hooked up to WiFi, it works perfectly. Without WiFi enabled and using only mobile data, it's a no-go. I'm grandfathered on the Simple Choice with 6 GB data, so I can use Binge-on to watch Netflix, etc without using my data bucket.
Was the phone designed to disable screen mirroring with mobile data by T-mobile or by LG? If by T-mobile, why? If I'm mirroring my phone's screen, then the TV or monitor is using the Binge-on optimized lower-def stream, so what does it matter if I'm watching on my phone or my monitor? Is there a way around this?
I can cast to my Roku and that works perfectly but both phone and Roku must be on WiFi (no way to turn on Hotspot and work it that way).
I've read that some people use ChromeCast to cast the phone screen using only mobile data, but i've read no stories about success with the LG V30 specifically. Has anyone used it successfully? At $36, I don't want to buy one to find out it won't work for my device.
Any advice would be appreciated. Thanks!