first I've got signal and could make calls am on giffgaff now experiencing problems does register sim network I do have internet data but says emergency calls only was working before in this archos 55 platinum other simcard is running asda mobile witch is orginal network I've placed simcard in get signal like giffgaff  and data but still can't make a call Say's network busy the emergency calls from menu is gone since used that simcard or is my phone completely broken since the update I'm using my phone now.