I would say that the adapter would probably work. The problem would be getting a card that large to work. Most phones say they support up to 32 gig micro sd card, some are saying 64gb now. I don't know if this is because of hard/software limitations in the phone or if they just can't make anything bigger than a 64gig microsd yet. 256 gig in a phone would be redonk but AWESOME!

 

Not even that is enough ^^

 

HOW??? Are you using a standard usb to micro? I've used CIFs before to mount network drives. At least I know you can mount NTFS & HFS volumes now.

 

This only works on devices that support USB OTG. Should be any device with OS > 4.0 iirc...

All you need to do is not plug the USB OTG adapter in your device, then you can connect almost any USB device, even hubs...

 

It might also be hardware related, I ain't sure about that...

Just checked over at XDA and it might be possible to use OTG with the Desire... A kernel that supports that is required though...

 

Then get a OTG cable, install that kernel patches/modules/whatever and give it a try...