Screencasting/Screen mirroring on JVC ROKU tv

[#1]

Moving On... !  ( another update in the saga ! )

Last evening... I had a go at doing it via my Lenovo 10 inch tablet running Android.  Managed to ger " smartview " app installed, and tried with that... it found the telly, and the telly found the tablet, but the tablet just kept showing "connecting" for ages, before the telly "timed out".. .

Have looked at some other video player apps ( google search on line ) . to see which of them actually did "casting" to tv, unfortunately those that did were "not compatible" with my unit.. ( presumably because the Android version was too old, ! )

So, at the moment it is looking like I shall have to invest into a Chromecast dongle, to achieve what @Dan_the_Van  has done.

A bit disappointed but will still see if there is something that works.  ( maybe buy a newer tablet ! ) 

[#2]

Out of interest, are there any published (international) standards relating to the connectivity between device, or would this be a totally proprietory setup with 3rd-party developed applications trying to fill the gaps?

My current understanding/reading is that ROKU is proprietory. I'm happy to be corrcted if my understanding is incorrect.

[#3]

@greygit1  Dunno.... But I seem to remember reading something that ROKU tv use the MIRACAST software/system, whatever.

Generally, (again from snippets I have read) it looks like most of the video apps use "CHROMECAST" and needs a "CHROMECAST DONGLE" plugged in to the receive tv.

I installed "SMARTVIEW" on my Huawei Y6 (2019) phone to do a screen mirroring test with a music video on the phone, to my Roku TV ( no chromecast dongle )