Author Topic: Applying activation code when app is not installed from google play store  (Read 1629 times)

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Offline Merlin

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with existing activation code from windows premium security purchase I wanted to change the installed Avast_Antivirus_&_Security_6.56.1.apk on my android smartphone to premium version. But after clicking the "UPGRADE" button an error message appears that the app was not installed from google play store, so I can't obtain the next window to put in the activation code.
Is it possible to activate the app without using the google play store?