hi sir,i wish to know how to used the HWK just buy from I-Phone ,i install the latest N-Box 2.4 ,but now the program say need the actifvation string?if this need to update firmware before used? because lasttime i used the N-Box 2.0 is no problem,but now program will pop up actifvation string and say HWK not attace ,pls select device ,device not compatible software.what mean is this? can you help me and teah me how to used the HWK? i ask the sales from i-Phone,but they just say to install the lattest N-box 2.4 only?or this forum member can hell me solve this problem.thank for reply