Lumia 620(WP8.1 DP) stops responding when I am in a hot area(such as Delhi). I have to restart the phone(or it restarts automatically). In my area it works almost fine(stops responding for some time[restart ain't required though] after playing games. Shall I give up the phone(I have to spend few years in Delhi)? If I do give up, I get Xperia C(Doesn't compete well against Lumia 620 except in performance).