Unable To Format Sd Card. If you are unable to format SD card on Android or Windows PC, you can try using a reliable third-party SD card formatter. SD card, but my SD card suddenly popped out a message said I need to format my device.
Here I recommend you to use MiniTool Partition Wizard Free Edition, which is a free partition manager & SD card.
Normally you can easily format your SD card on Android phone, Windows PC, or digital camera.
Look about some issues SD card is used to transfer files one to another. Black screen appears along with an error message 'SD card is not accessible. Whenever you get the Android unable to format SD card error, it often happens because the SD card is already formatted with a file system it doesn't recognize, or the SD card can no longer perform write operations.