Ok, so I have a Sandisk Extreme PRO SDXC UHS - I 64 GB card from few weeks. I have no problem until yesterday. Card was full (one very big video file) as always soo I copy the file and press format in exFat on WIn 7 and the power on my card reader switch off. It’s not card related just my USB hub switch off (it;s not important why, it was normal ).
Then whole formatting process freeze. I can’t do anything so I take card from reader to renew formatting.
After inserting it back again windows don’t read this card. Nothing show up on My Computer just like card reader was empty. I switch computer to another operating system OS X (it Mac Pro witch Win 7 on it) and try to do it with disc manager.
In OS X card show up for a moment then disappear and over again. I can’t format it in 2 sec…
What program can be use to read it and format it as it should be ? I’m broke my card or what ?