I brought a new Lumia that runs Windows Phone 8 and now I am trying to install apps by manually downloading them and then installing it through the SD card (Store > SD card). I have installed some of the apps like Viber this way.
But I am unable to install other kinds of apps like Adobe Reader, PDF Reader, German etc. The problem is that my phone doesn't recognize the XAP files of these apps. it just showing "identifying apps" and nothing else.