LG TV connect issue


Hi newbie here, and new to android after defecting from Apple this week. So I have ‘seen the light’ as some are calling it and moved over to android i was looking forward to connecting my phone to my LG tv only to discover that the player the tv uses is no longer supported, so while it can see my phone (Honor 9, Huawei) it cannot connect and says it is no longer supported.

Someone has suggested using the All Connect app - so i have 2 questions does anyone else have an old LG Smart TV that they have connected to their phone via the app and/or is there any other Honor 9 users that has successfully connected their phone to ChromeCast (the other option if the app doesn’t work)