Hi guys, I recently got my 9900, my carrier is LIME (previously known as Cable & Wireless). I bought a phone from a small time phone dealer because the price was better and couldn't afford a contract at this time. The original carrier for the phone is Sutel, which is based in Costa Rica. A friend of mine who works here at LIME was doing some updates to the 9900's they were bringing in to sell to make them capable with our 4G network. He was saying that because the phone is from a different carrier he wouldn't be able to do the same for me. I am just trying to see if he is mistaken? Anyone have any insight on this?