Signed App Distributed Locally And Then Published To Google Play Store

I distributed an app locally. I mean I signed the app and then I installed it manually into few devices, let´s say app version 1.1 I have published the app two days ago, let´s sa

Solution 1:

• If the app has never been installed from the Play store for that user account it won't update
• If the app is signed with a different key from the Play store it won't update.

In general, only apps that were installed from Google Play will be updated by Google Play.