Android shows Done and Open after COME installation
After installation, Done and Open can lead to different next screens. Read Android's completion message before choosing what to do.
Confirm completion
The installer outcome is the key checkpoint. If Android reports an error instead, neither a browser notification nor a downloaded file proves success. Keep the exact message and resolve it before moving to account or app-use questions.
Choose the next action
Open normally starts the installed app. Done usually dismisses the installer, after which you can use the device's app list. Device wording can vary, so follow the current screen rather than assuming identical buttons on every phone.
Avoid reopening the installer
Returning to the saved APK can launch installation again. Once the app is installed, open it through its recognised app entry instead. A later sign-in or network error belongs to a different stage.
A useful next step
Check the first app screen and retain account recovery access while completing any sign-in task.
Related: Two COME installation attempts are pending