This is a safety feature that locks a device if it’s reset without logging out of the Google account first. The "Trick":

: You will need to enable "Install from Unknown Sources" in your device settings to run the APK. Direct Download : Public archives like the Internet Archive also host these files for older Android versions. Safety Warning Android 8 9 10 GAM : Google LLC - Internet Archive

It is on all certified Android devices (phones with Google Play Services). However, some situations require manually installing specific versions (8, 9, or 10):

: Serves as the primary verification bridge for apps like Google Play Store and Gmail. How to Install the APK

Ensure you are downloading the version that matches your OS (e.g., if you have Android 9.0 Pie, download the GAM 9.0 APK).