Smartphones are often called "computers in our pocket", mostly because of how capable they are today compared to yesteryear's hulking boxes. But if so, should we be even surprised if someone took pains to mod one like a PC? Well, we definitely should be in this case. While most mods involve changing a smartphone's appearance or just software, a certain Mark, a.k.a. Core Down, went the extra mile to mod the hardware too. To the point that he adds a ridiculously big Wi-Fi antenna and a contrastingly small CPU fan on a Lumia 520.