Regards!
I'm Katia, and ma having the very same issue. I used to connect from two different Xiaomi on My Semp Roku TV. Just about today, it stoped working totally.
It still shows (on - with the viewing from the phones - "screen mirroring - as its function is called on Xiaomi Phones - 9S and a Poco X3 Pro, both with MIUI 13) on both smartphones that I used to screen mirroring, but it do never succeed, just keep rolling, disappear from "screen mirroring 'end points'", and if I do try again, keeps going on that way every single time.
I've tried all the suggested troubleshooting (about security on any way: "prompt, alaways permit, blocked devices - there was none, Device connect - on the advanced tab, it was on and I did turn that off and on once to certifiy).
Still on, after all that, I did just not the "Factory Reset" from the OS way, but also the "Physical Reset Button". Nothing has worked out.
Here are my Semp Roku Tv Data, so I hope that you guys, may have a hand on helping me here also!
Sincerely regards, and... Thank on advance!
And on, here is the Data:
Model: 8126X - Roku Tv
Serial Number: X00500ARR8K4 (S09Y64DRR8K4)
SO Version: 12.5.5 - Review 4171-D0
GC Version: 11.6.21
Registering time (GMT-3): 2024:06-02T02:42:33Z
Issue ID Reporting: K4-220-482
One more thing: Its up the actual date (06/01/24).