Lexar Professional 3600X SD Card Isn't Visible

Question

I have Lexar Professional Workflow CR2 card reader and a 256 GB Lexar Professional 3600x, but it seems like my card has an issue, when I insert the memory card inside card reader and plug the card reader's usb to computer, nothing happens except the blue light from card reader. I can see the card reader as a device in my computer but I can't see or explore my files as a drive. But, interestingly when I list the drives on my windows PC on command prompt; I can see an extra drive. But when I try to enter it via command prompt (by writing it's letter only like E:) I get "Device is not ready" as an answer.

I don't need the files inside the memory card, I just need to be able to use it again.

Edit: After list disk i see an additional Disk besides my HDDs with

No Media           0 B      0 B

and its' number is 2, after writing sel disk 2;

Disk 2 is now the selected disk.

list part;

There are no partitions on this disk to show.

list vol

 Volume 4     E                       Removable       0 B  No Media

Thanks in advance.

Answer 1

Now that it appears, here's a step-by-step suggestion for DISKPART thanks to Helpdeskgeek.com:

list disk  
select disk n  
clean  
list disk 

(You'll see an asterisk next to the disk name)

create partition primary
select partition 1
active
format FS=NTFS label=Data quick 

(You can change Data above to whatever you want, & use any unused drive letter below)

assign letter = x
exit