I am unable to access the external HDD that came with the laptop.

The reason appears to be that I executed "sudo dosfslabel /dev/sdb1 BACKUP01" in an attempt to rename the external HDD. Now it does not show up as a storage device at all.

I ran gparted and it is not showing in the list of devices.

Is it possible to get the device reinstated without losing my data?

Please help.