Usbc Flash Drive Problems

[UrPerturbedBro]

So I bought a brand new 512 gb Samsung flash drive so I could transfer my photos and videos easily. But when I went to plug it I to my phone nothing happened I looked in My files nothing but my internal is there and the cloud stuff... But I've looked on Google, reddit even posted on there about this problem no solutions yet.. I've tried the USB debugging, my auto blocker is off usb mode is in transfer files option. Only thing I haven't done yet is a factory reset but I don't wanna do that because I don't think that's the problem and the usbc flash drive works on my pc I even reformatted it, still nothing... If someone could get back to me I'd appreciate it. 

[Fons23]

U using a data cable?

[UrPerturbedBro]

It's a little pen drive that plugs straight into my phobe via usbc. And my phone doesn't even detect it

[Oxford]

Have you tried it on other phones or other devices to see if it works? Could it be a bad device?

[Tom6068]

I'd return it, that does not sound right especially since you went into developer mode and made the correct adjustments. As Oxford suggested, try it on another device as well to make doubly sure.

[UrPerturbedBro]

I did the return they sent me a new one still does the same thing as the first it's not being detected.

[neilth]

Plug it into a computer and see if it needs to be formatted.

[3Fees]

Use Samsung Smart Switch.

Cheers
3Fees

[usermzeJaY3BsM]

When you reformatted it, what file system did you use?  Samsung devices will not see NTFS partitions.

[UrPerturbedBro]

Exfat but I've tried both still nothing....