"If you've used an SD card for more advanced purposes than simply storing digital photos (e.g. running a mobile or micro OS), you'll find it requires a little more finesse than simply formatting the card to reclaim all the space. Read on as we show you how."
The Diskpart will be able to correct errors that a Full Format cannot handle. Full Format is the first step, but often fails, especially if you start flashing O/S on the Card.
So, you have it the other way around.
1.) Full Format is a good first step
2.) Disk Part is the Last Step
