HSUPA is what allows the phone to deliver faster upload speeds. Anything you go to download or browse that has to use the networks connection will first have to send the information, in order to recieve it. Notice when your looking at her H+ icon, it shows the arrows underneath it. You see it show progress of up and down. With HSUPA being locked, its not allowing the High Speed Uplink happen so we can get the download quicker. Its not gonna be a heaven and hell difference when we get it enabled lol. But the information has to be sent, in order to be recieved. So the quicker it sends, the quicker we get it. Thats how you will be able to download whatever you do quicker. But Ill be honest. Its not LTE. And wont be a blazing difference but it will be noticable.