BT would be your first point of call because you are a BT TV customer using the NowTV Bolt on service paid through BT direct.
You could try NowTV live chat if nobody comes to your rescue on here, but i would guess they will bounce you back to BT because you are their customer even if the App is NowTV's.
i would also try the BT TV Community Forum if it was me.
If you get it sorted, i for one will be interested to know what was going wrong.
Well after being passed from pillar to post on BTs helpline I'm back at square 1😭
They just said I've got the boost pass so should be getting 5.1 sound on my device.
They also advised I contact NOWTV so is there an email address I can use?
I've also posted this issue on BTs forum🤞🏻
Do you have another phone or tablet and spare slots on your pass to test the app on another device?
Have you ever used Netflix free trial? If not, sign up for the first month free and cast something with 5.1
Either of those options should mean you can work out of its the pixel, Chromecast or app.
Netflix doesn't offer a free trial in the UK anymore the last time i checked 😠.
Good call mind about trying a different mobile device and service to eliminate things further 👍.
Hi guys thanks for your help yesterday
Thought I'd post an update...
Installed Netflix on my pixel 3a and casting using my Chromecast V3 still get stereo so maybe not a NOWTV issue after all!
Also tried Netflix on my firestick 4K and that allows 5.1 so it seems more like an issue with the Chromecast!
Bit stumped now and will probably just use the Chromecast as a last resort.
Also fairly sure that my Chromecast is capable of 5.1 and that it's a V3 due to comparisons I've made online.
If I get any updates or changes to this I will update you. Thanks again😎👍🏻
Also found this info quite interesting...
Sorry guys but got another update 😂
Tried a new combo tonight...
Chromecast V3 plugged into my Sony DH820 HDMI Receiver and Netflix outputs 5.1 but NOWTV still only doing stereo!?!
Netflix Pixel 3a Chromecast HDMI receiver
NOWTV Pixel 3a Chromecast HDMI receiver
I have opened a ticket with NOWTV as that error about needing BOOST doesn't look right to me still 😞