mini SD card can't read by phone

You have a mini SD card that can be read by the computer but not your smartphone? Here's how to solve it:

Use the SD card formatter by the SD card association.
Go here to download: https://www.sdcard.org/downloads/formatter_4

Look at the left hand side and select the OS you are using to start the download:

Does it work for you? Leave a comment or a reaction. Thank you.