Main components

A metadata package that tells Android which Mainline modules the phone has, used by Google Play system updates. Keep it: Main components is needed for the phone, its updates or its security.

What it does

Main components is Google's build of the ModuleMetadata package, part of Android's Mainline system. It holds a list describing every updatable system module on the phone, and Android reads it at startup to answer which modules are installed and what they are called. System screens that report module versions rely on that list, and the package is updated along with the other modules.

Also shown as Module Metadata.

If you disable it

Android loses its list of installed modules, which can break the Google Play system update screen and module updates; community lists rate removal as unsafe.

How to disable it

On most phones Settings greys out Disable for this package, so ADB is the way to turn it off. The commands below work without root and can be undone.

adb shell pm disable-user --user 0 com.google.android.modulemetadata

adb shell pm enable com.google.android.modulemetadata

The stronger option removes it for your user only; the original copy stays on the phone and a factory reset brings it back. Prefer disabling: it is easier to undo.

adb shell pm uninstall -k --user 0 com.google.android.modulemetadata

adb shell cmd package install-existing com.google.android.modulemetadata

New to ADB? Set it up in about ten minutes.

Data and battery

Holds a list of module names; no user data.

Where it appears

• Made by Google LLC.
• Android versions: 10 and later.