camera inoperative, says SDCard needs to be installed. the card

[trampkat]

please any ideas: thunderbolt ard6400l continually says SCard must be installed when trying to use camera. remove card and read with laptop, all files are present. the last time i
successfully used the application CamScanner was march 2012. also, took it to a verizon retailer store...."yep, the camera is not working"
open to all suggestions!