Yes, I know this is what the “Play Store Installer” is there for. It is not on the phone. My situation is that I am running Android 4.2.2, having performed a “factory data reset”. I would prefer to be running Fairphone OS, but I can’t see any way of getting back to that.
I had switched over to Android from Fairphone OS because of the Play Store not working and stupid “unfortunately, google play services has stopped working” crashes that were popping up at totally random times. Be warned, switching over to android does nothing to alleviate this. Removing the play store and Google Play Services and then trying to reinstall them from apks also brings these crashes. Hence why I “factory reset”, hoping to be taken back to a Fairphone OS version where everything was as it previously was. But nope, I’m still on Android, the Play Store has gone again, and as I say there’s no clear way to get to Fairphone OS.