Cant format my SD card

[zeiriza12]

One night I was finish taking photos with my phone and while in the middle of looking through my gallery; either phone or the sd card unmounted itself and now I can not view the card on the phone or computer. When I use it in the computer, it shows it (almost) their, but I can't access it. But the sd card was used in my htc desire 626 phone, I used the the htc system manager to retrieve my pictures, but not my music and pdfs. I tried the sd card in phone again and it showing that it's not mounted. And now, I can't format it.

 

[ChaoticWolf]

Is the SD card on write protected mode? If you're using a Micro SD card and using a micro sd card adapter, make sure the switch on the side of the adapter is set up or down. (the positions may be different on some adapters)