Rebel T2i says No Card-

[sewmom]

my rebel T2i says no card regardless of what sd card is in it- I took my card out, down loaded pictures and put it back like I always do, now it won't acknowledge the card is there. Any ideas???

 

[kenrivers]

I'm not sure any of this will work but try removing the battery and SD card from the camera and leaving them out for at least 30 minutes. After 30 minutes put the battery back in and then reinsert the SD card. If that fails then you could try resetting the camera to factory defaults and see if that helps.