How to Repair BlackBerry Bold 9700 : Can't Access SIM Card

Flaw description:Blackberry forward 9700 sometimes shows enter sim cardboard content spell sim has been inserted into the moving. This job occurs because there is many internal itinerary nonexistent from the sim tray to the sim IC and sometime due to a shorted sim IC. So we can't way the sim in the ambulant.Charge whitener:For a intelligent and comely solution for this evilness we bang to obey