Figured out how to update the Chromecast ultra firmware (i think). I joined the preview program in the settings, then pulled power and started again a bunch of times. Now I got
How to Update Chromecast Firmware to Latest Version
How To Update Chromecast Firmware | Robots.net
Chromecast ultra 4k displayed multiple times in displays - Support - Roon Labs Community
How to Root Your Chromecast « Cord Cutters :: Gadget Hacks
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How to Update Chromecast
Chromecast with Google TV gets a firmware update to improve Dolby Vision playback and storage | What Hi-Fi?
This Google Firmware Update Brings Stadia Support To Existing Chromecast Ultras | HotHardware
This Google Chromecast Custom ROM Lets You Use The Device Without WiFi And Internet | Redmond Pie
Google's new Chromecast HD might have a big storage advantage
Chromecast with Google TV starts receiving new update, includes bug fixes and security updates - Times of India
Chromecast with Google TV leak reveals new controller with 'magic' button | TechRadar
Upgrade Firmware - EZCast Pro Documentation
How to Update Firmware in Chromecast ! - YouTube
Chromecast with Google TV (HD) features Amlogic S805X2 CPU with AV1 video support - CNX Software
Chromecast with Google TV gets frame-rate matching with Android 12 update
How to Update Chromecast Firmware to the Latest Version - TechOwns
How To Force Chromecast To Update
Forcing a firmware update on a Chromecast with Powershell | DXPetti.com
Devices not found after an update of the Chromecast firmware · Issue #47 · SamDel/ChromeCast-Desktop-Audio-Streamer · GitHub
How to Get Firmware Updates on Chromecast with Google TV - YouTube
4K Chromecast With Google TV Finally Gets Android 12 Upgrade | PCMag
Google ends support for original Chromecast — see if you need to upgrade | Tom's Guide
Why It Might be Time to Update Your Old Chromecast
