My name is Cormac McConnell. I registed this account to review my perfect product. I purchased a HiBoost F10-GWto improve connection in the studio. It worked fine for 10 months. It boosted my poor signal up to 5 bars though I never believed it will. It also worked great on 3G data upload & download and then red alarm LED started flashing. I contacted the service and explained the problem. It turned out to be that the outdoor antenna on the roof was removed by strong wind probably and because of that the booster couldnt receive the signal to amplify. I fixed the antenna better this time and asignal range inside is great again.Its good i decided to give them a call, as a minute before I was going to put it in a recycle bin as a total rubbish. Its pleasant to know I was wrong. Many thanks to patient and professional support managers working there.