Thanks for the response. I was using a card reader as the SD card is standard size I use in my DSLR camera and was needing to transfer the photos to my tablet. I bought the reader from Curry's and have taken it back as it won't work on ym Samsung phone nor tablet. The tech support chap tried using it on his IPhone and it wouldn't bring up the transfer file options either so it could be the reader. I've ordered a cable that is due to arrive tomorrow so fingers crossed!