I've replaced the broken headphone port (3.5mm) on my blackberry Curve with another 3.5mm and I have it down pretty well. Am i missing something or is there some reason why I cant just replace the 2.5mm jack with a 3.5 mm jack. I mean opening the device, breaking the connection with the 2.5 mm one and re-attaching a 3.5 one. mabye some light drilling on the side-rails would be needed, but it should work..... right?!