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Streaming device

Google Chromecast with Google TV 4K (2020)

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AI-assisted control
Contributor report

Use the contributor’s package list to reduce unwanted services and simplify the home screen.

AI connects to the device

Reported setupOS: Google TV 14 · Firmware: UTTC.250917.004 (14193937) · Hardware: sabrina / sabrina_prod_stable

How to get started

Compare your model, build and installed apps with the contributor guide, then use the original AI workflow with your chosen apps to keep.

Setup
Local ADB package changes and optional launcher installation
You’ll need
Local computer, shell-capable coding assistant and wireless-debugging pairing on the reported Google TV 14 build. JDK 17 and Android SDK 34 if building the launcher.
Original project github.comInstallation guide github.comAuthor’s AI workflow github.com
App or integration
Maintainer-reported device test

Show your network cameras on the TV, or bring up the front-door view from a Home Assistant automation.

Applies toThe author tested Chromecast with Google TV 4K; the Android build is unspecified. Its web controls have no login or encryption: keep them on a trusted local network.

How to get started

Install the app from the original release page. Add your go2rtc server address in its web settings; use the linked guide for optional Home Assistant control.

Setup
Sideload a TV app
You’ll need
A go2rtc camera server; ADB or a file manager to install the app.
Original project github.comInstallation guide github.com
App or integration
Model-specific setup documented

Turn the idle TV into a scenic video display or a slideshow of your own photos.

Applies toThe guide names Chromecast with Google TV HD and 4K. On Android 14, use the TV’s wireless-debugging pairing code and displayed port; the default screensaver can be restored.

How to get started

Install Aerial Views from the project’s linked store or release page, choose your media, then follow its Chromecast instructions to make it the default screensaver.

Setup
TV app plus a one-time ADB setting
You’ll need
Computer or phone with ADB for screensaver setup.
Original project github.comInstallation guide github.com
Replacement firmware
Project-supported model; restricted unlock route

Replace Google TV with a community-maintained Android operating system on an eligible Chromecast 4K.

Applies toFor sabrina 4K only. The documented unlock requires the February 2021 security patch or earlier; newer locked devices cannot use it or downgrade to qualify. Unlocking erases data, and incorrect flashing can brick the device.

How to get started

Start with the sabrina installation guide and check the unlock requirements before downloading anything. The guide covers bootloader unlocking, recovery installation and installing the OS over USB.

Setup
Advanced: unlock, flash recovery and install the OS
You’ll need
Eligible Chromecast 4K, USB-C data cable and a computer with the guide’s ADB, fastboot and unlock tools.
Original project wiki.lineageos.orgInstallation guide wiki.lineageos.org

Security

Checked

Device-specific sources reviewed.

Model advisories

Selected highlights

Prioritized by known exploitation, severity, then date.

CVEs published · · · Advisory published

CVSS 7.8 (v3.1)

Chromecast with Google TV (4K), the 2020 model

Google's December 2025 graphics-driver fixes

CVE-2024-6790CVE-2025-0050CVE-2025-0427CVE-2025-0819

Affected firmware
Devices missing the December 2025 fixes. Google does not state an earliest affected firmware build.
Manufacturer fix listed in
Security patch level 2025-12-01 or later
Read Google advisory
Details and sources

Google lists fixes for four Arm graphics-driver issues. Check the device's security patch level and available system update.

Three issues concern privilege escalation and one can stop the device working. This advisory does not assess the software currently installed on your unit.

Manufacturer fix — Security patch level 2025-12-01 or later ↗
CVE-2024-6790 published CVE-2025-0050 published CVE-2025-0427 published CVE-2025-0819 published
Check more security advisories for this device · CVE.org