Hi, I have question on an SD card I had on my Samsung 7 phone. I had many pictures on this SD card but after i did a Samsung update & now said SD corrupted.I plugged in computer but says need to be formatted , I think i did format on phone not sure,

You should have downloaded the photos first then do the update afterwards. As a result you lost all the photos due to updating the phone wiped out whatever you had in previous just like reformatting the phone understand?

If you need recover your pictures do so before you reformat the SD

You have to format the sd card on the pc first. Then plug it in back to your phone.