I can't format my SanDisk ultra micro sdhc UHS-I card

I can’t format my SanDisk ultra micro sdhc UHS-I card neither I delete data from it nor I insert data in it . When I try to format this it show that it is write protected plz help me how can I format the card

this is a bad card, it will need to be replaced. Contact sandisk support to check the warranty status.