36

It is possible that you searched for the app using google. Somehow the google result links to the US version of the page, which grays out the install link for non-US people. Remove the "gl=US" at the end of the URL address.


2

In my case the button was greyed out when I accessed the google play store by using a web search for an app and then following the link to the play store. If I went to the play store first and then searched for the app, there was no problem. The solution proposed by Georgi121270 (remove the "gl=US" at the end of the URL address) solved the problem. ...


2

In my case, it says the app is compatible with all my devices, but the reason seems to be that the app is not available in my region (this is not mentioned anywhere).


1

Here is how to fix the problem without root and without setting the volume to some predefined volume (such as 100%). This "feature" is controlled by a System.Global property audio_safe_volume_state, which is also reset automatically every 20 hours (this is why the volume periodically gets lowered all of a sudden even without plugging / unplugging ...


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