Originally Posted by sumonmolla
Why you want 3rd party apps install in your moto X. i think it may be contain virus..
of course there are many apps which are no longer in play store are available, such as Flash Player, Flappy Birds etc. or extracted apk's from other models that I want to install. I do not think that it is caused by a virus, as it has temporarily work the first time for no apparent reason again. but only briefly. I have read in some forums that there are users of the Moto G have the same problem. Also, where was nothing else than the smartphone again completely reset. I've had a lot of Android phones, and this error never occurred.