Hi i have a RM875 1020,bought new in Costa Rica,but shows in system info New Zealand,Australia.The person in store selling me phone did say it may not pick up the (fast) signals in the US,just says he wanted to let me know before i buy phone.Since i wanted unlocked and unbranded to AT+T version and that,s only 1 he has i bought it.He was right in my area north of NYC.it reads(E)for edge 2g but if i go into the city,Times Square,etc,it reads H+.Now i,m moving to Florida and when i got off plane it reads 3G and the speed is the fastest i,ve since i bought the phone.Is 3G the eqivalent of T Mobile 4G LTE? I have T Mobile here in US.I compared it to someone who has a T Mobile phone with LTE and mine is same speed or faster.