Okay so I get this problem a lot when playing IF on live mode manily, I use a Song Xperia SP, and this is where I play IF, but its very laggy and when I take off or am on final and some times even mid flight, my whole phone either restarts or just exits the game, how can I rectify this?
I would just guess it is because of the high traffic around airports in the servers. Try lowering all your settings as well.
Turn settings down, especially ‘Airplane Count’ in the Live tab.
Hiding other plane dots, and names will help.
Water quality is a big resource eater.
Turning the mini map off from HUD or Cockpit cam will improve performance too.