I find this area full of issues. USB 3.0 should be backwards compatible but as folk discover it's not always.
More at link. And try some USB 2.0 drives next. Why repeat what others are finding?
I called samsung sales supports before I made purchase of Samsung TV UN55D8000. I asked how much capacity of external hard drive will competible with this model. Samsung sales represantative replied, this model is works for upto 4TB capacity of external hard drive.
Samsung only supports upto 1.5TB of external hard drives. this is truth.
I purchased that model. and I use my iomega 500gb hard drive for almost a year now. I just brought 3TB hard drive - Seagate backup plus 3TB model # STCA3000101 which is not even recognised in TV.
I called 3 days ago to samsung and they said only upto 1.5TB will works with this model.
why this kinda big company sales representatives lies?