S2 LTE HD - no US 3G?

[Guest munky^^]

I'm looking at buying a S2 LTE HD. I want the HD screen and I want LTE for travelling to the US and using 3G/4G there. Most of the time I'll be in the UK.

I found one here:

http://www.plemix.com/phone-samsung-e120-phone#review

But it specifically says no US 3G.

Anyone know why that is? Could it be fixed with a new ROM?

Am I likely to have any problems with a phone from China/Korea for use in the UK?

Thanks,

m