I will have a travel to the USA. I want to buy a Droid 3. Whether XT862 will be locked if I buy it directly in AmazonWireless? Can I insert a foreign SIM card simplily in the cell phone and use it? If yes, I want to order one and make it sent to my friend, and I'll get it from my friend. If not, how can I unlock it or get unlock code for it? BTW, in my country, there are no Verizon services.