Hey, I'm new on Forum.. I hv Lumia 640xl having problem with store.. Any application which is more than 20mb is not downloadable on cellular network.. It requires Wifi to download.. Plz help me..
We actual can not help this cape is standard in WP 8.1. but for some it's not 20 but 50 or 100 mb.
So if you have access to WiFi please use WiFi.
There is a work around but than you need a second phone. In the second phone enable wifi sharing and connect you phone to this WiFi now you can download apps .