How to Unlock and Use Android Auto Hidden Developer Settings
Android Auto version and permission info menus harbor a hidden developer menu that allows users to enable unknown sources, take screenshots, and adjust video resolution.
Unlocking Sideloaded Apps and Unknown Sources
By default, Android Auto checks with Google Play Services to confirm that any projecting app is properly signed and originates from the Play Source approved automotive category. Activating the Unknown Sources setting within the developer menu skips this check entirely. This allows the system to show media and messaging apps installed from outside the Play Store, such as third-party store apps or APK files. Users can use this to run unapproved video and media apps like CarStream or Fermata Auto, or to run custom diagnostic dashboards built on Torque Pro.
Capturing Screenshots and Forcing Resolution
Standard phone screenshot methods do not capture the car’s display because the phone sends its interface to the car head unit as a separate screen. To capture what is on the display, users must access the developer menu and tap Share screenshot now.
This pulls the image directly from the car screen, saving it as a PNG format and opening the phone share menu.
Users can also override low baseline resolutions programmed by carmakers—such as 480p—by using the Video Resolution option in the developer settings. Forcing the phone to output at 720p or 1080p sends a sharper video feed directly to the car screen.
Application Mode Profiles
Application Mode allows users to change how the phone beams the driving-friendly interface to the car screen by choosing between several profiles:

- Release: The default profile where everything remains locked down as intended by Google and car makers.
- Developer mode: Loosens restrictions for developers and testers, permitting uncertified apps to run, relaxing interface limits, and dumping detailed logs.
- Retail mode: Locks down personal data and prevents lasting changes, mimicking what customers see in stores.
- X-Ray: Used for testing apps and phones for diagnostics and security.