COMECOME opens to a blank screen after installation
A blank first screen occurs after the app-opening stage. Confirm the installation result, then record the screen and connection before choosing a fix.
Check the scope
See whether the app remains open, closes or shows a later error. Check ordinary internet access separately. An empty view does not prove that the APK is corrupt, the account is lost or the service is unavailable for everyone.
Use a simple retry
If appropriate, close and reopen the app through the phone's normal controls after checking the connection. Avoid clearing app data or reinstalling immediately. Keep the installed version and the time of the observation.
Escalate with useful details
Use the service's displayed help route if the symptom persists. Describe the device, Android version, opening behaviour and any message. Do not send account passwords or verification codes with a screenshot.
A useful next step
Keep app-opening and installation outcomes separate in the report so the next check addresses the right stage.
Related: Android shows Done and Open after COME installation