hello dear sir, I just installed a fresh raspberry pi model B with a zte usb key and i got the following message : embedded usb-modeswitch is not valid for your architect. You need to recompile for devices to switch properly. start by issueing ./sakis3g recompile Thats what i did but it didnt work. it tells me that a library, usb.h and a developpement kit libusb are missing. What can i do and were can i get that ?