How to clear current “read-only” state on a USB flash drive I setup with Rufus?

Three weeks ago I used Rufus 2.2 to install Windows 10 on my machine, and it has write-protected my flash drive.
I’ve tried diskpart:

diskpart

att disk clear readonly 
clean
create partition primary
format fs=fat32 quick

And it kinda worked, it removed the image off the USB, but now it’s showing:

Current Read-only State : Yes
Read-only  : No

Boot Disk  : No
Pagefile Disk  : No
Hibernation File Disk  : No
Crashdump Disk  : No
Clustered Disk  : No

And I can’t format it or write on it.

The drive is a a Kingston DataTraveler G4 32GB model, without physical switches. How would I restore it back to normal (rw) state?